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<div class="subTitle">org.joda.time</div>
<h2 title="Class MutablePeriod" class="title">Class MutablePeriod</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../../../org/joda/time/base/AbstractPeriod.html" title="class in org.joda.time.base">org.joda.time.base.AbstractPeriod</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../org/joda/time/base/BasePeriod.html" title="class in org.joda.time.base">org.joda.time.base.BasePeriod</a></li>
<li>
<ul class="inheritance">
<li>org.joda.time.MutablePeriod</li>
</ul>
</li>
</ul>
</li>
</ul>
</li>
</ul>
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>All Implemented Interfaces:</dt>
<dd>java.io.Serializable, java.lang.Cloneable, <a href="../../../org/joda/time/ReadablePeriod.html" title="interface in org.joda.time">ReadablePeriod</a>, <a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></dd>
</dl>
<hr>
<br>
<pre>public class <span class="strong">MutablePeriod</span>
extends <a href="../../../org/joda/time/base/BasePeriod.html" title="class in org.joda.time.base">BasePeriod</a>
implements <a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a>, java.lang.Cloneable, java.io.Serializable</pre>
<div class="block">Standard mutable time period implementation.
<p>
A time period is divided into a number of fields, such as hours and seconds.
Which fields are supported is defined by the PeriodType class.
The default is the standard period type, which supports years, months, weeks, days,
hours, minutes, seconds and millis.
<p>
When this time period is added to an instant, the effect is of adding each field in turn.
As a result, this takes into account daylight savings time.
Adding a time period of 1 day to the day before daylight savings starts will only add
23 hours rather than 24 to ensure that the time remains the same.
If this is not the behaviour you want, then see <a href="../../../org/joda/time/Duration.html" title="class in org.joda.time"><code>Duration</code></a>.
<p>
The definition of a period also affects the equals method. A period of 1
day is not equal to a period of 24 hours, nor 1 hour equal to 60 minutes.
This is because periods represent an abstracted definition of a time period
(eg. a day may not actually be 24 hours, it might be 23 or 25 at daylight
savings boundary). To compare the actual duration of two periods, convert
both to durations using toDuration, an operation that emphasises that the
result may differ according to the date you choose.
<p>
MutablePeriod is mutable and not thread-safe, unless concurrent threads
are not invoking mutator methods.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>1.0</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../org/joda/time/Period.html" title="class in org.joda.time"><code>Period</code></a>,
<a href="../../../serialized-form.html#org.joda.time.MutablePeriod">Serialized Form</a></dd></dl>
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<h3>Constructor Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod()">MutablePeriod</a></strong>()</code>
<div class="block">Creates a zero-length period using the standard period type.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(int, int, int, int)">MutablePeriod</a></strong>(int hours,
int minutes,
int seconds,
int millis)</code>
<div class="block">Create a period from a set of field values using the standard set of fields.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(int, int, int, int, int, int, int, int)">MutablePeriod</a></strong>(int years,
int months,
int weeks,
int days,
int hours,
int minutes,
int seconds,
int millis)</code>
<div class="block">Create a period from a set of field values using the standard set of fields.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(int, int, int, int, int, int, int, int, org.joda.time.PeriodType)">MutablePeriod</a></strong>(int years,
int months,
int weeks,
int days,
int hours,
int minutes,
int seconds,
int millis,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</code>
<div class="block">Create a period from a set of field values.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(long)">MutablePeriod</a></strong>(long duration)</code>
<div class="block">Creates a period from the given millisecond duration using the standard
set of fields.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(long, org.joda.time.Chronology)">MutablePeriod</a></strong>(long duration,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chronology)</code>
<div class="block">Creates a period from the given millisecond duration using the standard
set of fields.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(long, long)">MutablePeriod</a></strong>(long startInstant,
long endInstant)</code>
<div class="block">Creates a period from the given interval endpoints using the standard
set of fields.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(long, long, org.joda.time.Chronology)">MutablePeriod</a></strong>(long startInstant,
long endInstant,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</code>
<div class="block">Creates a period from the given interval endpoints using the standard
set of fields.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(long, long, org.joda.time.PeriodType)">MutablePeriod</a></strong>(long startInstant,
long endInstant,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</code>
<div class="block">Creates a period from the given interval endpoints.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(long, long, org.joda.time.PeriodType, org.joda.time.Chronology)">MutablePeriod</a></strong>(long startInstant,
long endInstant,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</code>
<div class="block">Creates a period from the given interval endpoints.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(long, org.joda.time.PeriodType)">MutablePeriod</a></strong>(long duration,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</code>
<div class="block">Creates a period from the given millisecond duration.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(long, org.joda.time.PeriodType, org.joda.time.Chronology)">MutablePeriod</a></strong>(long duration,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chronology)</code>
<div class="block">Creates a period from the given millisecond duration.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(java.lang.Object)">MutablePeriod</a></strong>(java.lang.Object period)</code>
<div class="block">Creates a period by converting or copying from another object.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(java.lang.Object, org.joda.time.Chronology)">MutablePeriod</a></strong>(java.lang.Object period,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</code>
<div class="block">Creates a period by converting or copying from another object.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(java.lang.Object, org.joda.time.PeriodType)">MutablePeriod</a></strong>(java.lang.Object period,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</code>
<div class="block">Creates a period by converting or copying from another object.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(java.lang.Object, org.joda.time.PeriodType, org.joda.time.Chronology)">MutablePeriod</a></strong>(java.lang.Object period,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</code>
<div class="block">Creates a period by converting or copying from another object.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(org.joda.time.PeriodType)">MutablePeriod</a></strong>(<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</code>
<div class="block">Creates a zero-length period using the specified period type.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(org.joda.time.ReadableDuration, org.joda.time.ReadableInstant)">MutablePeriod</a></strong>(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> endInstant)</code>
<div class="block">Creates a period from the given duration and end point.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(org.joda.time.ReadableDuration, org.joda.time.ReadableInstant, org.joda.time.PeriodType)">MutablePeriod</a></strong>(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> endInstant,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</code>
<div class="block">Creates a period from the given duration and end point.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(org.joda.time.ReadableInstant, org.joda.time.ReadableDuration)">MutablePeriod</a></strong>(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> startInstant,
<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration)</code>
<div class="block">Creates a period from the given start point and the duration.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(org.joda.time.ReadableInstant, org.joda.time.ReadableDuration, org.joda.time.PeriodType)">MutablePeriod</a></strong>(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> startInstant,
<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</code>
<div class="block">Creates a period from the given start point and the duration.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(org.joda.time.ReadableInstant, org.joda.time.ReadableInstant)">MutablePeriod</a></strong>(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> startInstant,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> endInstant)</code>
<div class="block">Creates a period from the given interval endpoints using the standard
set of fields.</div>
</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#MutablePeriod(org.joda.time.ReadableInstant, org.joda.time.ReadableInstant, org.joda.time.PeriodType)">MutablePeriod</a></strong>(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> startInstant,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> endInstant,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</code>
<div class="block">Creates a period from the given interval endpoints.</div>
</td>
</tr>
</table>
</li>
</ul>
<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="method_summary">
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</a>
<h3>Method Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span>Methods</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.DurationFieldType, int)">add</a></strong>(<a href="../../../org/joda/time/DurationFieldType.html" title="class in org.joda.time">DurationFieldType</a> field,
int value)</code>
<div class="block">Adds to the value of one of the fields.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#add(int, int, int, int, int, int, int, int)">add</a></strong>(int years,
int months,
int weeks,
int days,
int hours,
int minutes,
int seconds,
int millis)</code>
<div class="block">Adds to each field of this period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#add(long)">add</a></strong>(long duration)</code>
<div class="block">Adds a millisecond duration to this one by dividing the duration into
fields and calling <a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadablePeriod)"><code>add(ReadablePeriod)</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#add(long, org.joda.time.Chronology)">add</a></strong>(long duration,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</code>
<div class="block">Adds a millisecond duration to this one by dividing the duration into
fields and calling <a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadablePeriod)"><code>add(ReadablePeriod)</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadableDuration)">add</a></strong>(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration)</code>
<div class="block">Adds a duration to this one by dividing the duration into
fields and calling <a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadablePeriod)"><code>add(ReadablePeriod)</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadableInterval)">add</a></strong>(<a href="../../../org/joda/time/ReadableInterval.html" title="interface in org.joda.time">ReadableInterval</a> interval)</code>
<div class="block">Adds an interval to this one by dividing the interval into
fields and calling <a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadablePeriod)"><code>add(ReadablePeriod)</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadablePeriod)">add</a></strong>(<a href="../../../org/joda/time/ReadablePeriod.html" title="interface in org.joda.time">ReadablePeriod</a> period)</code>
<div class="block">Adds a period to this one by adding each field in turn.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#addDays(int)">addDays</a></strong>(int days)</code>
<div class="block">Adds the specified days to the number of days in the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#addHours(int)">addHours</a></strong>(int hours)</code>
<div class="block">Adds the specified hours to the number of hours in the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#addMillis(int)">addMillis</a></strong>(int millis)</code>
<div class="block">Adds the specified millis to the number of millis in the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#addMinutes(int)">addMinutes</a></strong>(int minutes)</code>
<div class="block">Adds the specified minutes to the number of minutes in the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#addMonths(int)">addMonths</a></strong>(int months)</code>
<div class="block">Adds the specified months to the number of months in the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#addSeconds(int)">addSeconds</a></strong>(int seconds)</code>
<div class="block">Adds the specified seconds to the number of seconds in the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#addWeeks(int)">addWeeks</a></strong>(int weeks)</code>
<div class="block">Adds the specified weeks to the number of weeks in the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#addYears(int)">addYears</a></strong>(int years)</code>
<div class="block">Adds the specified years to the number of years in the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#clear()">clear</a></strong>()</code>
<div class="block">Clears the period, setting all values back to zero.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.Object</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#clone()">clone</a></strong>()</code>
<div class="block">Clone this object.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../org/joda/time/MutablePeriod.html" title="class in org.joda.time">MutablePeriod</a></code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#copy()">copy</a></strong>()</code>
<div class="block">Clone this object without having to cast the returned object.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#getDays()">getDays</a></strong>()</code>
<div class="block">Gets the days field part of the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#getHours()">getHours</a></strong>()</code>
<div class="block">Gets the hours field part of the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#getMillis()">getMillis</a></strong>()</code>
<div class="block">Gets the millis field part of the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#getMinutes()">getMinutes</a></strong>()</code>
<div class="block">Gets the minutes field part of the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#getMonths()">getMonths</a></strong>()</code>
<div class="block">Gets the months field part of the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#getSeconds()">getSeconds</a></strong>()</code>
<div class="block">Gets the seconds field part of the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#getWeeks()">getWeeks</a></strong>()</code>
<div class="block">Gets the weeks field part of the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#getYears()">getYears</a></strong>()</code>
<div class="block">Gets the years field part of the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#mergePeriod(org.joda.time.ReadablePeriod)">mergePeriod</a></strong>(<a href="../../../org/joda/time/ReadablePeriod.html" title="interface in org.joda.time">ReadablePeriod</a> period)</code>
<div class="block">Merges all the fields from the specified period into this one.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../org/joda/time/MutablePeriod.html" title="class in org.joda.time">MutablePeriod</a></code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#parse(java.lang.String)">parse</a></strong>(java.lang.String str)</code>
<div class="block">Parses a <code>MutablePeriod</code> from the specified string.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../org/joda/time/MutablePeriod.html" title="class in org.joda.time">MutablePeriod</a></code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#parse(java.lang.String, org.joda.time.format.PeriodFormatter)">parse</a></strong>(java.lang.String str,
<a href="../../../org/joda/time/format/PeriodFormatter.html" title="class in org.joda.time.format">PeriodFormatter</a> formatter)</code>
<div class="block">Parses a <code>MutablePeriod</code> from the specified string using a formatter.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#set(org.joda.time.DurationFieldType, int)">set</a></strong>(<a href="../../../org/joda/time/DurationFieldType.html" title="class in org.joda.time">DurationFieldType</a> field,
int value)</code>
<div class="block">Sets the value of one of the fields.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setDays(int)">setDays</a></strong>(int days)</code>
<div class="block">Sets the number of days of the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setHours(int)">setHours</a></strong>(int hours)</code>
<div class="block">Sets the number of hours of the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setMillis(int)">setMillis</a></strong>(int millis)</code>
<div class="block">Sets the number of millis of the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setMinutes(int)">setMinutes</a></strong>(int minutes)</code>
<div class="block">Sets the number of minutes of the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setMonths(int)">setMonths</a></strong>(int months)</code>
<div class="block">Sets the number of months of the period.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(int, int, int, int, int, int, int, int)">setPeriod</a></strong>(int years,
int months,
int weeks,
int days,
int hours,
int minutes,
int seconds,
int millis)</code>
<div class="block">Sets all the fields in one go.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(long)">setPeriod</a></strong>(long duration)</code>
<div class="block">Sets all the fields in one go from a millisecond duration dividing the
fields using the period type.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(long, org.joda.time.Chronology)">setPeriod</a></strong>(long duration,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</code>
<div class="block">Sets all the fields in one go from a millisecond duration.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(long, long)">setPeriod</a></strong>(long startInstant,
long endInstant)</code>
<div class="block">Sets all the fields in one go from a millisecond interval using ISOChronology
and dividing the fields using the period type.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(long, long, org.joda.time.Chronology)">setPeriod</a></strong>(long startInstant,
long endInstant,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</code>
<div class="block">Sets all the fields in one go from a millisecond interval.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(org.joda.time.ReadableDuration)">setPeriod</a></strong>(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration)</code>
<div class="block">Sets all the fields in one go from a duration dividing the
fields using the period type.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(org.joda.time.ReadableDuration, org.joda.time.Chronology)">setPeriod</a></strong>(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</code>
<div class="block">Sets all the fields in one go from a duration dividing the
fields using the period type.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(org.joda.time.ReadableInstant, org.joda.time.ReadableInstant)">setPeriod</a></strong>(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> start,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> end)</code>
<div class="block">Sets all the fields in one go from two instants representing an interval.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(org.joda.time.ReadableInterval)">setPeriod</a></strong>(<a href="../../../org/joda/time/ReadableInterval.html" title="interface in org.joda.time">ReadableInterval</a> interval)</code>
<div class="block">Sets all the fields in one go from an interval using the ISO chronology
and dividing the fields using the period type.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setPeriod(org.joda.time.ReadablePeriod)">setPeriod</a></strong>(<a href="../../../org/joda/time/ReadablePeriod.html" title="interface in org.joda.time">ReadablePeriod</a> period)</code>
<div class="block">Sets all the fields in one go from another ReadablePeriod.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setSeconds(int)">setSeconds</a></strong>(int seconds)</code>
<div class="block">Sets the number of seconds of the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setValue(int, int)">setValue</a></strong>(int index,
int value)</code>
<div class="block">Sets the value of one of the fields by index.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setWeeks(int)">setWeeks</a></strong>(int weeks)</code>
<div class="block">Sets the number of weeks of the period.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../org/joda/time/MutablePeriod.html#setYears(int)">setYears</a></strong>(int years)</code>
<div class="block">Sets the number of years of the period.</div>
</td>
</tr>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods_inherited_from_class_org.joda.time.base.BasePeriod">
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</a>
<h3>Methods inherited from class org.joda.time.base.<a href="../../../org/joda/time/base/BasePeriod.html" title="class in org.joda.time.base">BasePeriod</a></h3>
<code><a href="../../../org/joda/time/base/BasePeriod.html#addField(org.joda.time.DurationFieldType, int)">addField</a>, <a href="../../../org/joda/time/base/BasePeriod.html#addFieldInto(int[], org.joda.time.DurationFieldType, int)">addFieldInto</a>, <a href="../../../org/joda/time/base/BasePeriod.html#addPeriod(org.joda.time.ReadablePeriod)">addPeriod</a>, <a href="../../../org/joda/time/base/BasePeriod.html#addPeriodInto(int[], org.joda.time.ReadablePeriod)">addPeriodInto</a>, <a href="../../../org/joda/time/base/BasePeriod.html#checkPeriodType(org.joda.time.PeriodType)">checkPeriodType</a>, <a href="../../../org/joda/time/base/BasePeriod.html#getPeriodType()">getPeriodType</a>, <a href="../../../org/joda/time/base/BasePeriod.html#getValue(int)">getValue</a>, <a href="../../../org/joda/time/base/BasePeriod.html#mergePeriodInto(int[], org.joda.time.ReadablePeriod)">mergePeriodInto</a>, <a href="../../../org/joda/time/base/BasePeriod.html#setField(org.joda.time.DurationFieldType, int)">setField</a>, <a href="../../../org/joda/time/base/BasePeriod.html#setFieldInto(int[], org.joda.time.DurationFieldType, int)">setFieldInto</a>, <a href="../../../org/joda/time/base/BasePeriod.html#setValues(int[])">setValues</a>, <a href="../../../org/joda/time/base/BasePeriod.html#toDurationFrom(org.joda.time.ReadableInstant)">toDurationFrom</a>, <a href="../../../org/joda/time/base/BasePeriod.html#toDurationTo(org.joda.time.ReadableInstant)">toDurationTo</a></code></li>
</ul>
<ul class="blockList">
<li class="blockList"><a name="methods_inherited_from_class_org.joda.time.base.AbstractPeriod">
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<h3>Methods inherited from class org.joda.time.base.<a href="../../../org/joda/time/base/AbstractPeriod.html" title="class in org.joda.time.base">AbstractPeriod</a></h3>
<code><a href="../../../org/joda/time/base/AbstractPeriod.html#equals(java.lang.Object)">equals</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#get(org.joda.time.DurationFieldType)">get</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#getFieldType(int)">getFieldType</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#getFieldTypes()">getFieldTypes</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#getValues()">getValues</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#hashCode()">hashCode</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#indexOf(org.joda.time.DurationFieldType)">indexOf</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#isSupported(org.joda.time.DurationFieldType)">isSupported</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#size()">size</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#toMutablePeriod()">toMutablePeriod</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#toPeriod()">toPeriod</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#toString()">toString</a>, <a href="../../../org/joda/time/base/AbstractPeriod.html#toString(org.joda.time.format.PeriodFormatter)">toString</a></code></li>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>finalize, getClass, notify, notifyAll, wait, wait, wait</code></li>
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<h3>Methods inherited from interface org.joda.time.<a href="../../../org/joda/time/ReadablePeriod.html" title="interface in org.joda.time">ReadablePeriod</a></h3>
<code><a href="../../../org/joda/time/ReadablePeriod.html#equals(java.lang.Object)">equals</a>, <a href="../../../org/joda/time/ReadablePeriod.html#get(org.joda.time.DurationFieldType)">get</a>, <a href="../../../org/joda/time/ReadablePeriod.html#getFieldType(int)">getFieldType</a>, <a href="../../../org/joda/time/ReadablePeriod.html#getPeriodType()">getPeriodType</a>, <a href="../../../org/joda/time/ReadablePeriod.html#getValue(int)">getValue</a>, <a href="../../../org/joda/time/ReadablePeriod.html#hashCode()">hashCode</a>, <a href="../../../org/joda/time/ReadablePeriod.html#isSupported(org.joda.time.DurationFieldType)">isSupported</a>, <a href="../../../org/joda/time/ReadablePeriod.html#size()">size</a>, <a href="../../../org/joda/time/ReadablePeriod.html#toMutablePeriod()">toMutablePeriod</a>, <a href="../../../org/joda/time/ReadablePeriod.html#toPeriod()">toPeriod</a>, <a href="../../../org/joda/time/ReadablePeriod.html#toString()">toString</a></code></li>
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<pre>public MutablePeriod()</pre>
<div class="block">Creates a zero-length period using the standard period type.</div>
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<pre>public MutablePeriod(<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</pre>
<div class="block">Creates a zero-length period using the specified period type.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>type</code> - which set of fields this period supports</dd></dl>
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<pre>public MutablePeriod(int hours,
int minutes,
int seconds,
int millis)</pre>
<div class="block">Create a period from a set of field values using the standard set of fields.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>hours</code> - amount of hours in this period</dd><dd><code>minutes</code> - amount of minutes in this period</dd><dd><code>seconds</code> - amount of seconds in this period</dd><dd><code>millis</code> - amount of milliseconds in this period</dd></dl>
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<pre>public MutablePeriod(int years,
int months,
int weeks,
int days,
int hours,
int minutes,
int seconds,
int millis)</pre>
<div class="block">Create a period from a set of field values using the standard set of fields.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>years</code> - amount of years in this period</dd><dd><code>months</code> - amount of months in this period</dd><dd><code>weeks</code> - amount of weeks in this period</dd><dd><code>days</code> - amount of days in this period</dd><dd><code>hours</code> - amount of hours in this period</dd><dd><code>minutes</code> - amount of minutes in this period</dd><dd><code>seconds</code> - amount of seconds in this period</dd><dd><code>millis</code> - amount of milliseconds in this period</dd></dl>
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<pre>public MutablePeriod(int years,
int months,
int weeks,
int days,
int hours,
int minutes,
int seconds,
int millis,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</pre>
<div class="block">Create a period from a set of field values.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>years</code> - amount of years in this period, which must be zero if unsupported</dd><dd><code>months</code> - amount of months in this period, which must be zero if unsupported</dd><dd><code>weeks</code> - amount of weeks in this period, which must be zero if unsupported</dd><dd><code>days</code> - amount of days in this period, which must be zero if unsupported</dd><dd><code>hours</code> - amount of hours in this period, which must be zero if unsupported</dd><dd><code>minutes</code> - amount of minutes in this period, which must be zero if unsupported</dd><dd><code>seconds</code> - amount of seconds in this period, which must be zero if unsupported</dd><dd><code>millis</code> - amount of milliseconds in this period, which must be zero if unsupported</dd><dd><code>type</code> - which set of fields this period supports, null means AllType</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if an unsupported field's value is non-zero</dd></dl>
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<pre>public MutablePeriod(long duration)</pre>
<div class="block">Creates a period from the given millisecond duration using the standard
set of fields.
<p>
Only precise fields in the period type will be used.
For the standard period type this is the time fields only.
Thus the year, month, week and day fields will not be populated.
<p>
If the duration is small, less than one day, then this method will perform
as you might expect and split the fields evenly.
<p>
If the duration is larger than one day then all the remaining duration will
be stored in the largest available precise field, hours in this case.
<p>
For example, a duration equal to (365 + 60 + 5) days will be converted to
((365 + 60 + 5) * 24) hours by this constructor.
<p>
For more control over the conversion process, you have two options:
<ul>
<li>convert the duration to an <a href="../../../org/joda/time/Interval.html" title="class in org.joda.time"><code>Interval</code></a>, and from there obtain the period
<li>specify a period type that contains precise definitions of the day and larger
fields, such as the UTC or precise types.
</ul></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration, in milliseconds</dd></dl>
</li>
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<pre>public MutablePeriod(long duration,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</pre>
<div class="block">Creates a period from the given millisecond duration.
<p>
Only precise fields in the period type will be used.
Imprecise fields will not be populated.
<p>
If the duration is small then this method will perform
as you might expect and split the fields evenly.
<p>
If the duration is large then all the remaining duration will
be stored in the largest available precise field.
For details as to which fields are precise, review the period type javadoc.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration, in milliseconds</dd><dd><code>type</code> - which set of fields this period supports, null means standard</dd></dl>
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<pre>public MutablePeriod(long duration,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chronology)</pre>
<div class="block">Creates a period from the given millisecond duration using the standard
set of fields.
<p>
Only precise fields in the period type will be used.
Imprecise fields will not be populated.
<p>
If the duration is small then this method will perform
as you might expect and split the fields evenly.
<p>
If the duration is large then all the remaining duration will
be stored in the largest available precise field.
For details as to which fields are precise, review the period type javadoc.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration, in milliseconds</dd><dd><code>chronology</code> - the chronology to use to split the duration, null means ISO default</dd></dl>
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<pre>public MutablePeriod(long duration,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chronology)</pre>
<div class="block">Creates a period from the given millisecond duration.
<p>
Only precise fields in the period type will be used.
Imprecise fields will not be populated.
<p>
If the duration is small then this method will perform
as you might expect and split the fields evenly.
<p>
If the duration is large then all the remaining duration will
be stored in the largest available precise field.
For details as to which fields are precise, review the period type javadoc.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration, in milliseconds</dd><dd><code>type</code> - which set of fields this period supports, null means standard</dd><dd><code>chronology</code> - the chronology to use to split the duration, null means ISO default</dd></dl>
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<pre>public MutablePeriod(long startInstant,
long endInstant)</pre>
<div class="block">Creates a period from the given interval endpoints using the standard
set of fields.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - interval start, in milliseconds</dd><dd><code>endInstant</code> - interval end, in milliseconds</dd></dl>
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<pre>public MutablePeriod(long startInstant,
long endInstant,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</pre>
<div class="block">Creates a period from the given interval endpoints.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - interval start, in milliseconds</dd><dd><code>endInstant</code> - interval end, in milliseconds</dd><dd><code>type</code> - which set of fields this period supports, null means standard</dd></dl>
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<pre>public MutablePeriod(long startInstant,
long endInstant,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</pre>
<div class="block">Creates a period from the given interval endpoints using the standard
set of fields.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - interval start, in milliseconds</dd><dd><code>endInstant</code> - interval end, in milliseconds</dd><dd><code>chrono</code> - the chronology to use, null means ISO in default zone</dd></dl>
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<pre>public MutablePeriod(long startInstant,
long endInstant,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</pre>
<div class="block">Creates a period from the given interval endpoints.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - interval start, in milliseconds</dd><dd><code>endInstant</code> - interval end, in milliseconds</dd><dd><code>type</code> - which set of fields this period supports, null means standard</dd><dd><code>chrono</code> - the chronology to use, null means ISO in default zone</dd></dl>
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<pre>public MutablePeriod(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> startInstant,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> endInstant)</pre>
<div class="block">Creates a period from the given interval endpoints using the standard
set of fields.
<p>
The chronology of the start instant is used, unless that is null when the
chronology of the end instant is used instead.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - interval start, null means now</dd><dd><code>endInstant</code> - interval end, null means now</dd></dl>
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<pre>public MutablePeriod(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> startInstant,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> endInstant,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</pre>
<div class="block">Creates a period from the given interval endpoints.
<p>
The chronology of the start instant is used, unless that is null when the
chronology of the end instant is used instead.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - interval start, null means now</dd><dd><code>endInstant</code> - interval end, null means now</dd><dd><code>type</code> - which set of fields this period supports, null means AllType</dd></dl>
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<pre>public MutablePeriod(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> startInstant,
<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration)</pre>
<div class="block">Creates a period from the given start point and the duration.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - the interval start, null means now</dd><dd><code>duration</code> - the duration of the interval, null means zero-length</dd></dl>
</li>
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<pre>public MutablePeriod(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> startInstant,
<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</pre>
<div class="block">Creates a period from the given start point and the duration.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - the interval start, null means now</dd><dd><code>duration</code> - the duration of the interval, null means zero-length</dd><dd><code>type</code> - which set of fields this period supports, null means standard</dd></dl>
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<pre>public MutablePeriod(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> endInstant)</pre>
<div class="block">Creates a period from the given duration and end point.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration of the interval, null means zero-length</dd><dd><code>endInstant</code> - the interval end, null means now</dd></dl>
</li>
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<pre>public MutablePeriod(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> endInstant,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</pre>
<div class="block">Creates a period from the given duration and end point.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration of the interval, null means zero-length</dd><dd><code>endInstant</code> - the interval end, null means now</dd><dd><code>type</code> - which set of fields this period supports, null means standard</dd></dl>
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<pre>public MutablePeriod(java.lang.Object period)</pre>
<div class="block">Creates a period by converting or copying from another object.
<p>
The recognised object types are defined in
<a href="../../../org/joda/time/convert/ConverterManager.html" title="class in org.joda.time.convert"><code>ConverterManager</code></a> and
include ReadablePeriod, ReadableInterval and String.
The String formats are described by <a href="../../../org/joda/time/format/ISOPeriodFormat.html#standard()"><code>ISOPeriodFormat.standard()</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>period</code> - period to convert</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if period is invalid</dd>
<dd><code>java.lang.UnsupportedOperationException</code> - if an unsupported field's value is non-zero</dd></dl>
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<pre>public MutablePeriod(java.lang.Object period,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type)</pre>
<div class="block">Creates a period by converting or copying from another object.
<p>
The recognised object types are defined in
<a href="../../../org/joda/time/convert/ConverterManager.html" title="class in org.joda.time.convert"><code>ConverterManager</code></a> and
include ReadablePeriod, ReadableInterval and String.
The String formats are described by <a href="../../../org/joda/time/format/ISOPeriodFormat.html#standard()"><code>ISOPeriodFormat.standard()</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>period</code> - period to convert</dd><dd><code>type</code> - which set of fields this period supports, null means use converter</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if period is invalid</dd>
<dd><code>java.lang.UnsupportedOperationException</code> - if an unsupported field's value is non-zero</dd></dl>
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<pre>public MutablePeriod(java.lang.Object period,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</pre>
<div class="block">Creates a period by converting or copying from another object.
<p>
The recognised object types are defined in
<a href="../../../org/joda/time/convert/ConverterManager.html" title="class in org.joda.time.convert"><code>ConverterManager</code></a> and
include ReadablePeriod, ReadableInterval and String.
The String formats are described by <a href="../../../org/joda/time/format/ISOPeriodFormat.html#standard()"><code>ISOPeriodFormat.standard()</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>period</code> - period to convert</dd><dd><code>chrono</code> - the chronology to use, null means ISO in default zone</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if period is invalid</dd>
<dd><code>java.lang.UnsupportedOperationException</code> - if an unsupported field's value is non-zero</dd></dl>
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<pre>public MutablePeriod(java.lang.Object period,
<a href="../../../org/joda/time/PeriodType.html" title="class in org.joda.time">PeriodType</a> type,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</pre>
<div class="block">Creates a period by converting or copying from another object.
<p>
The recognised object types are defined in
<a href="../../../org/joda/time/convert/ConverterManager.html" title="class in org.joda.time.convert"><code>ConverterManager</code></a> and
include ReadablePeriod, ReadableInterval and String.
The String formats are described by <a href="../../../org/joda/time/format/ISOPeriodFormat.html#standard()"><code>ISOPeriodFormat.standard()</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>period</code> - period to convert</dd><dd><code>type</code> - which set of fields this period supports, null means use converter</dd><dd><code>chrono</code> - the chronology to use, null means ISO in default zone</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if period is invalid</dd>
<dd><code>java.lang.UnsupportedOperationException</code> - if an unsupported field's value is non-zero</dd></dl>
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<pre>public static <a href="../../../org/joda/time/MutablePeriod.html" title="class in org.joda.time">MutablePeriod</a> parse(java.lang.String str)</pre>
<div class="block">Parses a <code>MutablePeriod</code> from the specified string.
<p>
This uses <a href="../../../org/joda/time/format/ISOPeriodFormat.html#standard()"><code>ISOPeriodFormat.standard()</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>str</code> - the string to parse, not null</dd><dt><span class="strong">Since:</span></dt>
<dd>2.0</dd></dl>
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<pre>public static <a href="../../../org/joda/time/MutablePeriod.html" title="class in org.joda.time">MutablePeriod</a> parse(java.lang.String str,
<a href="../../../org/joda/time/format/PeriodFormatter.html" title="class in org.joda.time.format">PeriodFormatter</a> formatter)</pre>
<div class="block">Parses a <code>MutablePeriod</code> from the specified string using a formatter.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>str</code> - the string to parse, not null</dd><dd><code>formatter</code> - the formatter to use, not null</dd><dt><span class="strong">Since:</span></dt>
<dd>2.0</dd></dl>
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<h4>clear</h4>
<pre>public void clear()</pre>
<div class="block">Clears the period, setting all values back to zero.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#clear()">clear</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
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<h4>setValue</h4>
<pre>public void setValue(int index,
int value)</pre>
<div class="block">Sets the value of one of the fields by index.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setValue(int, int)">setValue</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../org/joda/time/base/BasePeriod.html#setValue(int, int)">setValue</a></code> in class <code><a href="../../../org/joda/time/base/BasePeriod.html" title="class in org.joda.time.base">BasePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>index</code> - the field index</dd><dd><code>value</code> - the new value for the field</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IndexOutOfBoundsException</code> - if the index is invalid</dd></dl>
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<pre>public void set(<a href="../../../org/joda/time/DurationFieldType.html" title="class in org.joda.time">DurationFieldType</a> field,
int value)</pre>
<div class="block">Sets the value of one of the fields.
<p>
The field type specified must be one of those that is supported by the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#set(org.joda.time.DurationFieldType, int)">set</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>field</code> - a DurationFieldType instance that is supported by this period, not null</dd><dd><code>value</code> - the new value for the field</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the field is null or not supported</dd></dl>
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<pre>public void setPeriod(<a href="../../../org/joda/time/ReadablePeriod.html" title="interface in org.joda.time">ReadablePeriod</a> period)</pre>
<div class="block">Sets all the fields in one go from another ReadablePeriod.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setPeriod(org.joda.time.ReadablePeriod)">setPeriod</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../org/joda/time/base/BasePeriod.html#setPeriod(org.joda.time.ReadablePeriod)">setPeriod</a></code> in class <code><a href="../../../org/joda/time/base/BasePeriod.html" title="class in org.joda.time.base">BasePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>period</code> - the period to set, null means zero length period</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if an unsupported field's value is non-zero</dd></dl>
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<pre>public void setPeriod(int years,
int months,
int weeks,
int days,
int hours,
int minutes,
int seconds,
int millis)</pre>
<div class="block">Sets all the fields in one go.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setPeriod(int, int, int, int, int, int, int, int)">setPeriod</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../org/joda/time/base/BasePeriod.html#setPeriod(int, int, int, int, int, int, int, int)">setPeriod</a></code> in class <code><a href="../../../org/joda/time/base/BasePeriod.html" title="class in org.joda.time.base">BasePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>years</code> - amount of years in this period, which must be zero if unsupported</dd><dd><code>months</code> - amount of months in this period, which must be zero if unsupported</dd><dd><code>weeks</code> - amount of weeks in this period, which must be zero if unsupported</dd><dd><code>days</code> - amount of days in this period, which must be zero if unsupported</dd><dd><code>hours</code> - amount of hours in this period, which must be zero if unsupported</dd><dd><code>minutes</code> - amount of minutes in this period, which must be zero if unsupported</dd><dd><code>seconds</code> - amount of seconds in this period, which must be zero if unsupported</dd><dd><code>millis</code> - amount of milliseconds in this period, which must be zero if unsupported</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if an unsupported field's value is non-zero</dd></dl>
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<pre>public void setPeriod(<a href="../../../org/joda/time/ReadableInterval.html" title="interface in org.joda.time">ReadableInterval</a> interval)</pre>
<div class="block">Sets all the fields in one go from an interval using the ISO chronology
and dividing the fields using the period type.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setPeriod(org.joda.time.ReadableInterval)">setPeriod</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>interval</code> - the interval to set, null means zero length</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the set exceeds the capacity of the period</dd></dl>
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<pre>public void setPeriod(<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> start,
<a href="../../../org/joda/time/ReadableInstant.html" title="interface in org.joda.time">ReadableInstant</a> end)</pre>
<div class="block">Sets all the fields in one go from two instants representing an interval.
<p>
The chronology of the start instant is used, unless that is null when the
chronology of the end instant is used instead.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>start</code> - the start instant, null means now</dd><dd><code>end</code> - the end instant, null means now</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the set exceeds the capacity of the period</dd></dl>
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<pre>public void setPeriod(long startInstant,
long endInstant)</pre>
<div class="block">Sets all the fields in one go from a millisecond interval using ISOChronology
and dividing the fields using the period type.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - interval start, in milliseconds</dd><dd><code>endInstant</code> - interval end, in milliseconds</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the set exceeds the capacity of the period</dd></dl>
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<pre>public void setPeriod(long startInstant,
long endInstant,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</pre>
<div class="block">Sets all the fields in one go from a millisecond interval.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>startInstant</code> - interval start, in milliseconds</dd><dd><code>endInstant</code> - interval end, in milliseconds</dd><dd><code>chrono</code> - the chronology to use, null means ISO chronology</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the set exceeds the capacity of the period</dd></dl>
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<pre>public void setPeriod(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration)</pre>
<div class="block">Sets all the fields in one go from a duration dividing the
fields using the period type.
<p>
When dividing the duration, only precise fields in the period type will be used.
For large durations, all the remaining duration will be stored in the largest
available precise field.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration to set, null means zero length</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the set exceeds the capacity of the period</dd></dl>
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<pre>public void setPeriod(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</pre>
<div class="block">Sets all the fields in one go from a duration dividing the
fields using the period type.
<p>
When dividing the duration, only precise fields in the period type will be used.
For large durations, all the remaining duration will be stored in the largest
available precise field.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration to set, null means zero length</dd><dd><code>chrono</code> - the chronology to use, null means ISO default</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the set exceeds the capacity of the period</dd></dl>
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<pre>public void setPeriod(long duration)</pre>
<div class="block">Sets all the fields in one go from a millisecond duration dividing the
fields using the period type.
<p>
When dividing the duration, only precise fields in the period type will be used.
For large durations, all the remaining duration will be stored in the largest
available precise field.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration, in milliseconds</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the set exceeds the capacity of the period</dd></dl>
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<pre>public void setPeriod(long duration,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</pre>
<div class="block">Sets all the fields in one go from a millisecond duration.
<p>
When dividing the duration, only precise fields in the period type will be used.
For large durations, all the remaining duration will be stored in the largest
available precise field.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration, in milliseconds</dd><dd><code>chrono</code> - the chronology to use, null means ISO chronology</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the set exceeds the capacity of the period</dd></dl>
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</ul>
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<pre>public void add(<a href="../../../org/joda/time/DurationFieldType.html" title="class in org.joda.time">DurationFieldType</a> field,
int value)</pre>
<div class="block">Adds to the value of one of the fields.
<p>
The field type specified must be one of those that is supported by the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#add(org.joda.time.DurationFieldType, int)">add</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>field</code> - a DurationFieldType instance that is supported by this period, not null</dd><dd><code>value</code> - the value to add to the field</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the field is null or not supported</dd></dl>
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<pre>public void add(<a href="../../../org/joda/time/ReadablePeriod.html" title="interface in org.joda.time">ReadablePeriod</a> period)</pre>
<div class="block">Adds a period to this one by adding each field in turn.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#add(org.joda.time.ReadablePeriod)">add</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>period</code> - the period to add, null means add nothing</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the period being added contains a field
not supported by this period</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
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<pre>public void add(int years,
int months,
int weeks,
int days,
int hours,
int minutes,
int seconds,
int millis)</pre>
<div class="block">Adds to each field of this period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#add(int, int, int, int, int, int, int, int)">add</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>years</code> - amount of years to add to this period, which must be zero if unsupported</dd><dd><code>months</code> - amount of months to add to this period, which must be zero if unsupported</dd><dd><code>weeks</code> - amount of weeks to add to this period, which must be zero if unsupported</dd><dd><code>days</code> - amount of days to add to this period, which must be zero if unsupported</dd><dd><code>hours</code> - amount of hours to add to this period, which must be zero if unsupported</dd><dd><code>minutes</code> - amount of minutes to add to this period, which must be zero if unsupported</dd><dd><code>seconds</code> - amount of seconds to add to this period, which must be zero if unsupported</dd><dd><code>millis</code> - amount of milliseconds to add to this period, which must be zero if unsupported</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if the period being added contains a field
not supported by this period</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
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<pre>public void add(<a href="../../../org/joda/time/ReadableInterval.html" title="interface in org.joda.time">ReadableInterval</a> interval)</pre>
<div class="block">Adds an interval to this one by dividing the interval into
fields and calling <a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadablePeriod)"><code>add(ReadablePeriod)</code></a>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#add(org.joda.time.ReadableInterval)">add</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>interval</code> - the interval to add, null means add nothing</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
</li>
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<pre>public void add(<a href="../../../org/joda/time/ReadableDuration.html" title="interface in org.joda.time">ReadableDuration</a> duration)</pre>
<div class="block">Adds a duration to this one by dividing the duration into
fields and calling <a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadablePeriod)"><code>add(ReadablePeriod)</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration to add, null means add nothing</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
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<pre>public void add(long duration)</pre>
<div class="block">Adds a millisecond duration to this one by dividing the duration into
fields and calling <a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadablePeriod)"><code>add(ReadablePeriod)</code></a>.
<p>
When dividing the duration, only precise fields in the period type will be used.
For large durations, all the remaining duration will be stored in the largest
available precise field.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration, in milliseconds</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
</li>
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<pre>public void add(long duration,
<a href="../../../org/joda/time/Chronology.html" title="class in org.joda.time">Chronology</a> chrono)</pre>
<div class="block">Adds a millisecond duration to this one by dividing the duration into
fields and calling <a href="../../../org/joda/time/MutablePeriod.html#add(org.joda.time.ReadablePeriod)"><code>add(ReadablePeriod)</code></a>.
<p>
When dividing the duration, only precise fields in the period type will be used.
For large durations, all the remaining duration will be stored in the largest
available precise field.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>duration</code> - the duration, in milliseconds</dd><dd><code>chrono</code> - the chronology to use, null means ISO default</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
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<pre>public void mergePeriod(<a href="../../../org/joda/time/ReadablePeriod.html" title="interface in org.joda.time">ReadablePeriod</a> period)</pre>
<div class="block">Merges all the fields from the specified period into this one.
<p>
Fields that are not present in the specified period are left unaltered.</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../org/joda/time/base/BasePeriod.html#mergePeriod(org.joda.time.ReadablePeriod)">mergePeriod</a></code> in class <code><a href="../../../org/joda/time/base/BasePeriod.html" title="class in org.joda.time.base">BasePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>period</code> - the period to set, null ignored</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if an unsupported field's value is non-zero</dd></dl>
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<pre>public int getYears()</pre>
<div class="block">Gets the years field part of the period.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of years in the period, zero if unsupported</dd></dl>
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<pre>public int getMonths()</pre>
<div class="block">Gets the months field part of the period.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of months in the period, zero if unsupported</dd></dl>
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<h4>getWeeks</h4>
<pre>public int getWeeks()</pre>
<div class="block">Gets the weeks field part of the period.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of weeks in the period, zero if unsupported</dd></dl>
</li>
</ul>
<a name="getDays()">
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<h4>getDays</h4>
<pre>public int getDays()</pre>
<div class="block">Gets the days field part of the period.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of days in the period, zero if unsupported</dd></dl>
</li>
</ul>
<a name="getHours()">
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<h4>getHours</h4>
<pre>public int getHours()</pre>
<div class="block">Gets the hours field part of the period.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of hours in the period, zero if unsupported</dd></dl>
</li>
</ul>
<a name="getMinutes()">
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</a>
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<h4>getMinutes</h4>
<pre>public int getMinutes()</pre>
<div class="block">Gets the minutes field part of the period.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of minutes in the period, zero if unsupported</dd></dl>
</li>
</ul>
<a name="getSeconds()">
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<h4>getSeconds</h4>
<pre>public int getSeconds()</pre>
<div class="block">Gets the seconds field part of the period.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of seconds in the period, zero if unsupported</dd></dl>
</li>
</ul>
<a name="getMillis()">
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<h4>getMillis</h4>
<pre>public int getMillis()</pre>
<div class="block">Gets the millis field part of the period.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the number of millis in the period, zero if unsupported</dd></dl>
</li>
</ul>
<a name="setYears(int)">
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<h4>setYears</h4>
<pre>public void setYears(int years)</pre>
<div class="block">Sets the number of years of the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setYears(int)">setYears</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>years</code> - the number of years</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd></dl>
</li>
</ul>
<a name="addYears(int)">
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<h4>addYears</h4>
<pre>public void addYears(int years)</pre>
<div class="block">Adds the specified years to the number of years in the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#addYears(int)">addYears</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>years</code> - the number of years</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
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</ul>
<a name="setMonths(int)">
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<h4>setMonths</h4>
<pre>public void setMonths(int months)</pre>
<div class="block">Sets the number of months of the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setMonths(int)">setMonths</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>months</code> - the number of months</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd></dl>
</li>
</ul>
<a name="addMonths(int)">
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<h4>addMonths</h4>
<pre>public void addMonths(int months)</pre>
<div class="block">Adds the specified months to the number of months in the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#addMonths(int)">addMonths</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>months</code> - the number of months</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
</li>
</ul>
<a name="setWeeks(int)">
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<h4>setWeeks</h4>
<pre>public void setWeeks(int weeks)</pre>
<div class="block">Sets the number of weeks of the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setWeeks(int)">setWeeks</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>weeks</code> - the number of weeks</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd></dl>
</li>
</ul>
<a name="addWeeks(int)">
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<ul class="blockList">
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<h4>addWeeks</h4>
<pre>public void addWeeks(int weeks)</pre>
<div class="block">Adds the specified weeks to the number of weeks in the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#addWeeks(int)">addWeeks</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>weeks</code> - the number of weeks</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
</li>
</ul>
<a name="setDays(int)">
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<h4>setDays</h4>
<pre>public void setDays(int days)</pre>
<div class="block">Sets the number of days of the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setDays(int)">setDays</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>days</code> - the number of days</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd></dl>
</li>
</ul>
<a name="addDays(int)">
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<h4>addDays</h4>
<pre>public void addDays(int days)</pre>
<div class="block">Adds the specified days to the number of days in the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#addDays(int)">addDays</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>days</code> - the number of days</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
</li>
</ul>
<a name="setHours(int)">
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<h4>setHours</h4>
<pre>public void setHours(int hours)</pre>
<div class="block">Sets the number of hours of the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setHours(int)">setHours</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>hours</code> - the number of hours</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd></dl>
</li>
</ul>
<a name="addHours(int)">
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<li class="blockList">
<h4>addHours</h4>
<pre>public void addHours(int hours)</pre>
<div class="block">Adds the specified hours to the number of hours in the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#addHours(int)">addHours</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>hours</code> - the number of hours</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
</li>
</ul>
<a name="setMinutes(int)">
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</a>
<ul class="blockList">
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<h4>setMinutes</h4>
<pre>public void setMinutes(int minutes)</pre>
<div class="block">Sets the number of minutes of the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setMinutes(int)">setMinutes</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>minutes</code> - the number of minutes</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd></dl>
</li>
</ul>
<a name="addMinutes(int)">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>addMinutes</h4>
<pre>public void addMinutes(int minutes)</pre>
<div class="block">Adds the specified minutes to the number of minutes in the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#addMinutes(int)">addMinutes</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>minutes</code> - the number of minutes</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
</li>
</ul>
<a name="setSeconds(int)">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>setSeconds</h4>
<pre>public void setSeconds(int seconds)</pre>
<div class="block">Sets the number of seconds of the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setSeconds(int)">setSeconds</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>seconds</code> - the number of seconds</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd></dl>
</li>
</ul>
<a name="addSeconds(int)">
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</a>
<ul class="blockList">
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<h4>addSeconds</h4>
<pre>public void addSeconds(int seconds)</pre>
<div class="block">Adds the specified seconds to the number of seconds in the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#addSeconds(int)">addSeconds</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>seconds</code> - the number of seconds</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
</li>
</ul>
<a name="setMillis(int)">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>setMillis</h4>
<pre>public void setMillis(int millis)</pre>
<div class="block">Sets the number of millis of the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#setMillis(int)">setMillis</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>millis</code> - the number of millis</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd></dl>
</li>
</ul>
<a name="addMillis(int)">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>addMillis</h4>
<pre>public void addMillis(int millis)</pre>
<div class="block">Adds the specified millis to the number of millis in the period.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../org/joda/time/ReadWritablePeriod.html#addMillis(int)">addMillis</a></code> in interface <code><a href="../../../org/joda/time/ReadWritablePeriod.html" title="interface in org.joda.time">ReadWritablePeriod</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>millis</code> - the number of millis</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code>java.lang.IllegalArgumentException</code> - if field is not supported and the value is non-zero</dd>
<dd><code>java.lang.ArithmeticException</code> - if the addition exceeds the capacity of the period</dd></dl>
</li>
</ul>
<a name="copy()">
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</a>
<ul class="blockList">
<li class="blockList">
<h4>copy</h4>
<pre>public <a href="../../../org/joda/time/MutablePeriod.html" title="class in org.joda.time">MutablePeriod</a> copy()</pre>
<div class="block">Clone this object without having to cast the returned object.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>a clone of the this object.</dd></dl>
</li>
</ul>
<a name="clone()">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>clone</h4>
<pre>public java.lang.Object clone()</pre>
<div class="block">Clone this object.</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code>clone</code> in class <code>java.lang.Object</code></dd>
<dt><span class="strong">Returns:</span></dt><dd>a clone of this object.</dd></dl>
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