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<title>DateFormat.Field (Java Platform SE 7 )</title>
<meta name="date" content="2014-09-26">
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<meta name="keywords" content="ERA">
<meta name="keywords" content="YEAR">
<meta name="keywords" content="MONTH">
<meta name="keywords" content="DAY_OF_MONTH">
<meta name="keywords" content="HOUR_OF_DAY1">
<meta name="keywords" content="HOUR_OF_DAY0">
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<meta name="keywords" content="DAY_OF_WEEK">
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<meta name="keywords" content="WEEK_OF_YEAR">
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<div class="aboutLanguage"><em><strong>Java™ Platform<br>Standard Ed. 7</strong></em></div>
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<div class="subTitle">java.text</div>
<h2 title="Class DateFormat.Field" class="title">Class DateFormat.Field</h2>
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<ul class="inheritance">
<li><a href="../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
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<ul class="inheritance">
<li><a href="../../java/text/AttributedCharacterIterator.Attribute.html" title="class in java.text">java.text.AttributedCharacterIterator.Attribute</a></li>
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<li><a href="../../java/text/Format.Field.html" title="class in java.text">java.text.Format.Field</a></li>
<li>
<ul class="inheritance">
<li>java.text.DateFormat.Field</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../java/io/Serializable.html" title="interface in java.io">Serializable</a></dd>
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<dl>
<dt>Enclosing class:</dt>
<dd><a href="../../java/text/DateFormat.html" title="class in java.text">DateFormat</a></dd>
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<br>
<pre>public static class <span class="strong">DateFormat.Field</span>
extends <a href="../../java/text/Format.Field.html" title="class in java.text">Format.Field</a></pre>
<div class="block">Defines constants that are used as attribute keys in the
<code>AttributedCharacterIterator</code> returned
from <code>DateFormat.formatToCharacterIterator</code> and as
field identifiers in <code>FieldPosition</code>.
<p>
The class also provides two methods to map
between its constants and the corresponding Calendar constants.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>1.4</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../java/util/Calendar.html" title="class in java.util"><code>Calendar</code></a>,
<a href="../../serialized-form.html#java.text.DateFormat.Field">Serialized Form</a></dd></dl>
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<h3>Field Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
<caption><span>Fields</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#AM_PM">AM_PM</a></strong></code>
<div class="block">Constant identifying the time of day indicator
(e.g.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#DAY_OF_MONTH">DAY_OF_MONTH</a></strong></code>
<div class="block">Constant identifying the day of month field.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#DAY_OF_WEEK">DAY_OF_WEEK</a></strong></code>
<div class="block">Constant identifying the day of week field.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#DAY_OF_WEEK_IN_MONTH">DAY_OF_WEEK_IN_MONTH</a></strong></code>
<div class="block">Constant identifying the day of week field.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#DAY_OF_YEAR">DAY_OF_YEAR</a></strong></code>
<div class="block">Constant identifying the day of year field.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#ERA">ERA</a></strong></code>
<div class="block">Constant identifying the era field.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#HOUR_OF_DAY0">HOUR_OF_DAY0</a></strong></code>
<div class="block">Constant identifying the hour of day field, where the legal values
are 0 to 23.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#HOUR_OF_DAY1">HOUR_OF_DAY1</a></strong></code>
<div class="block">Constant identifying the hour of day field, where the legal values
are 1 to 24.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#HOUR0">HOUR0</a></strong></code>
<div class="block">Constant identifying the hour field, where the legal values are
0 to 11.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#HOUR1">HOUR1</a></strong></code>
<div class="block">Constant identifying the hour field, where the legal values are
1 to 12.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#MILLISECOND">MILLISECOND</a></strong></code>
<div class="block">Constant identifying the millisecond field.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#MINUTE">MINUTE</a></strong></code>
<div class="block">Constant identifying the minute field.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#MONTH">MONTH</a></strong></code>
<div class="block">Constant identifying the month field.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#SECOND">SECOND</a></strong></code>
<div class="block">Constant identifying the second field.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#TIME_ZONE">TIME_ZONE</a></strong></code>
<div class="block">Constant identifying the time zone field.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#WEEK_OF_MONTH">WEEK_OF_MONTH</a></strong></code>
<div class="block">Constant identifying the week of month field.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#WEEK_OF_YEAR">WEEK_OF_YEAR</a></strong></code>
<div class="block">Constant identifying the week of year field.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#YEAR">YEAR</a></strong></code>
<div class="block">Constant identifying the year field.</div>
</td>
</tr>
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<h3>Fields inherited from class java.text.<a href="../../java/text/AttributedCharacterIterator.Attribute.html" title="class in java.text">AttributedCharacterIterator.Attribute</a></h3>
<code><a href="../../java/text/AttributedCharacterIterator.Attribute.html#INPUT_METHOD_SEGMENT">INPUT_METHOD_SEGMENT</a>, <a href="../../java/text/AttributedCharacterIterator.Attribute.html#LANGUAGE">LANGUAGE</a>, <a href="../../java/text/AttributedCharacterIterator.Attribute.html#READING">READING</a></code></li>
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<th class="colLast" scope="col">Constructor and Description</th>
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<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#DateFormat.Field(java.lang.String,%20int)">DateFormat.Field</a></strong>(<a href="../../java/lang/String.html" title="class in java.lang">String</a> name,
int calendarField)</code>
<div class="block">Creates a <code>Field</code>.</div>
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<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#getCalendarField()">getCalendarField</a></strong>()</code>
<div class="block">Returns the <code>Calendar</code> field associated with this
attribute.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#ofCalendarField(int)">ofCalendarField</a></strong>(int calendarField)</code>
<div class="block">Returns the <code>Field</code> constant that corresponds to
the <code>Calendar</code> constant <code>calendarField</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../java/lang/Object.html" title="class in java.lang">Object</a></code></td>
<td class="colLast"><code><strong><a href="../../java/text/DateFormat.Field.html#readResolve()">readResolve</a></strong>()</code>
<div class="block">Resolves instances being deserialized to the predefined constants.</div>
</td>
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<h3>Methods inherited from class java.text.<a href="../../java/text/AttributedCharacterIterator.Attribute.html" title="class in java.text">AttributedCharacterIterator.Attribute</a></h3>
<code><a href="../../java/text/AttributedCharacterIterator.Attribute.html#equals(java.lang.Object)">equals</a>, <a href="../../java/text/AttributedCharacterIterator.Attribute.html#getName()">getName</a>, <a href="../../java/text/AttributedCharacterIterator.Attribute.html#hashCode()">hashCode</a>, <a href="../../java/text/AttributedCharacterIterator.Attribute.html#toString()">toString</a></code></li>
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<h3>Methods inherited from class java.lang.<a href="../../java/lang/Object.html" title="class in java.lang">Object</a></h3>
<code><a href="../../java/lang/Object.html#clone()">clone</a>, <a href="../../java/lang/Object.html#finalize()">finalize</a>, <a href="../../java/lang/Object.html#getClass()">getClass</a>, <a href="../../java/lang/Object.html#notify()">notify</a>, <a href="../../java/lang/Object.html#notifyAll()">notifyAll</a>, <a href="../../java/lang/Object.html#wait()">wait</a>, <a href="../../java/lang/Object.html#wait(long)">wait</a>, <a href="../../java/lang/Object.html#wait(long,%20int)">wait</a></code></li>
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<h3>Field Detail</h3>
<a name="ERA">
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<h4>ERA</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> ERA</pre>
<div class="block">Constant identifying the era field.</div>
</li>
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<a name="YEAR">
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<h4>YEAR</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> YEAR</pre>
<div class="block">Constant identifying the year field.</div>
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<a name="MONTH">
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<h4>MONTH</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> MONTH</pre>
<div class="block">Constant identifying the month field.</div>
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<h4>DAY_OF_MONTH</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> DAY_OF_MONTH</pre>
<div class="block">Constant identifying the day of month field.</div>
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<a name="HOUR_OF_DAY1">
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<h4>HOUR_OF_DAY1</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> HOUR_OF_DAY1</pre>
<div class="block">Constant identifying the hour of day field, where the legal values
are 1 to 24.</div>
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<h4>HOUR_OF_DAY0</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> HOUR_OF_DAY0</pre>
<div class="block">Constant identifying the hour of day field, where the legal values
are 0 to 23.</div>
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<a name="MINUTE">
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<h4>MINUTE</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> MINUTE</pre>
<div class="block">Constant identifying the minute field.</div>
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<a name="SECOND">
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<h4>SECOND</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> SECOND</pre>
<div class="block">Constant identifying the second field.</div>
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<h4>MILLISECOND</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> MILLISECOND</pre>
<div class="block">Constant identifying the millisecond field.</div>
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<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> DAY_OF_WEEK</pre>
<div class="block">Constant identifying the day of week field.</div>
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<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> DAY_OF_YEAR</pre>
<div class="block">Constant identifying the day of year field.</div>
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<h4>DAY_OF_WEEK_IN_MONTH</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> DAY_OF_WEEK_IN_MONTH</pre>
<div class="block">Constant identifying the day of week field.</div>
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<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> WEEK_OF_YEAR</pre>
<div class="block">Constant identifying the week of year field.</div>
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<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> WEEK_OF_MONTH</pre>
<div class="block">Constant identifying the week of month field.</div>
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<h4>AM_PM</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> AM_PM</pre>
<div class="block">Constant identifying the time of day indicator
(e.g. "a.m." or "p.m.") field.</div>
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<a name="HOUR1">
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<h4>HOUR1</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> HOUR1</pre>
<div class="block">Constant identifying the hour field, where the legal values are
1 to 12.</div>
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<h4>HOUR0</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> HOUR0</pre>
<div class="block">Constant identifying the hour field, where the legal values are
0 to 11.</div>
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<h4>TIME_ZONE</h4>
<pre>public static final <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> TIME_ZONE</pre>
<div class="block">Constant identifying the time zone field.</div>
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<h4>DateFormat.Field</h4>
<pre>protected DateFormat.Field(<a href="../../java/lang/String.html" title="class in java.lang">String</a> name,
int calendarField)</pre>
<div class="block">Creates a <code>Field</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - the name of the <code>Field</code></dd><dd><code>calendarField</code> - the <code>Calendar</code> constant this
<code>Field</code> corresponds to; any value, even one
outside the range of legal <code>Calendar</code> values may
be used, but <code>-1</code> should be used for values
that don't correspond to legal <code>Calendar</code> values</dd></dl>
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<a name="ofCalendarField(int)">
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<h4>ofCalendarField</h4>
<pre>public static <a href="../../java/text/DateFormat.Field.html" title="class in java.text">DateFormat.Field</a> ofCalendarField(int calendarField)</pre>
<div class="block">Returns the <code>Field</code> constant that corresponds to
the <code>Calendar</code> constant <code>calendarField</code>.
If there is no direct mapping between the <code>Calendar</code>
constant and a <code>Field</code>, null is returned.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>calendarField</code> - Calendar field constant</dd>
<dt><span class="strong">Returns:</span></dt><dd>Field instance representing calendarField.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - if <code>calendarField</code> is
not the value of a <code>Calendar</code> field constant.</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../java/util/Calendar.html" title="class in java.util"><code>Calendar</code></a></dd></dl>
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<h4>getCalendarField</h4>
<pre>public int getCalendarField()</pre>
<div class="block">Returns the <code>Calendar</code> field associated with this
attribute. For example, if this represents the hours field of
a <code>Calendar</code>, this would return
<code>Calendar.HOUR</code>. If there is no corresponding
<code>Calendar</code> constant, this will return -1.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>Calendar constant for this field</dd><dt><span class="strong">See Also:</span></dt><dd><a href="../../java/util/Calendar.html" title="class in java.util"><code>Calendar</code></a></dd></dl>
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<h4>readResolve</h4>
<pre>protected <a href="../../java/lang/Object.html" title="class in java.lang">Object</a> readResolve()
throws <a href="../../java/io/InvalidObjectException.html" title="class in java.io">InvalidObjectException</a></pre>
<div class="block">Resolves instances being deserialized to the predefined constants.</div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../java/text/AttributedCharacterIterator.Attribute.html#readResolve()">readResolve</a></code> in class <code><a href="../../java/text/AttributedCharacterIterator.Attribute.html" title="class in java.text">AttributedCharacterIterator.Attribute</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>resolved DateFormat.Field constant</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../java/io/InvalidObjectException.html" title="class in java.io">InvalidObjectException</a></code> - if the constant could not be
resolved.</dd></dl>
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