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<div class="subTitle">org.apache.logging.log4j.core.util.datetime</div>
<h2 title="Class FastDateFormat" class="title">Class FastDateFormat</h2>
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<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<ul class="inheritance">
<li><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html" title="class in org.apache.logging.log4j.core.util.datetime">org.apache.logging.log4j.core.util.datetime.Format</a></li>
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<ul class="inheritance">
<li>org.apache.logging.log4j.core.util.datetime.FastDateFormat</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a>, <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></dd>
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<pre>public class <a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.75">FastDateFormat</a>
extends <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html" title="class in org.apache.logging.log4j.core.util.datetime">Format</a>
implements <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a>, <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></pre>
<div class="block"><p>FastDateFormat is a fast and thread-safe version of
<a href="https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><code>SimpleDateFormat</code></a>.</p>
<p>To obtain an instance of FastDateFormat, use one of the static factory methods:
<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getInstance-java.lang.String-java.util.TimeZone-java.util.Locale-"><code>getInstance(String, TimeZone, Locale)</code></a>, <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateInstance-int-java.util.TimeZone-java.util.Locale-"><code>getDateInstance(int, TimeZone, Locale)</code></a>,
<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getTimeInstance-int-java.util.TimeZone-java.util.Locale-"><code>getTimeInstance(int, TimeZone, Locale)</code></a>, or <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateTimeInstance-int-int-java.util.TimeZone-java.util.Locale-"><code>getDateTimeInstance(int, int, TimeZone, Locale)</code></a>
</p>
<p>Since FastDateFormat is thread safe, you can use a static member instance:</p>
<code>
private static final FastDateFormat DATE_FORMATTER = FastDateFormat.getDateTimeInstance(FastDateFormat.LONG, FastDateFormat.SHORT);
</code>
<p>This class can be used as a direct replacement to
<code>SimpleDateFormat</code> in most formatting and parsing situations.
This class is especially useful in multi-threaded server environments.
<code>SimpleDateFormat</code> is not thread-safe in any JDK version,
nor will it be as Sun have closed the bug/RFE.
</p>
<p>All patterns are compatible with
SimpleDateFormat (except time zones and some year patterns - see below).</p>
<p>Since 3.2, FastDateFormat supports parsing as well as printing.</p>
<p>Java 1.4 introduced a new pattern letter, <code>'Z'</code>, to represent
time zones in RFC822 format (eg. <code>+0800</code> or <code>-1100</code>).
This pattern letter can be used here (on all JDK versions).</p>
<p>In addition, the pattern <code>'ZZ'</code> has been made to represent
ISO 8601 extended format time zones (eg. <code>+08:00</code> or <code>-11:00</code>).
This introduces a minor incompatibility with Java 1.4, but at a gain of
useful functionality.</p>
<p>Javadoc cites for the year pattern: <i>For formatting, if the number of
pattern letters is 2, the year is truncated to 2 digits; otherwise it is
interpreted as a number.</i> Starting with Java 1.7 a pattern of 'Y' or
'YYY' will be formatted as '2003', while it was '03' in former Java
versions. FastDateFormat implements the behavior of Java 7.</p>
<p>
Copied and modified from <a href="https://commons.apache.org/proper/commons-lang/">Apache Commons Lang</a>.
</p></div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>Apache Commons Lang 2.0</dd>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#FULL">FULL</a></span></code>
<div class="block">FULL locale dependent date or time style.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#LONG">LONG</a></span></code>
<div class="block">LONG locale dependent date or time style.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#MEDIUM">MEDIUM</a></span></code>
<div class="block">MEDIUM locale dependent date or time style.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#SHORT">SHORT</a></span></code>
<div class="block">SHORT locale dependent date or time style.</div>
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<th class="colFirst" scope="col">Modifier</th>
<th class="colLast" scope="col">Constructor and Description</th>
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<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#FastDateFormat-java.lang.String-java.util.TimeZone-java.util.Locale-">FastDateFormat</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</code>
<div class="block">Constructs a new FastDateFormat.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#FastDateFormat-java.lang.String-java.util.TimeZone-java.util.Locale-java.util.Date-">FastDateFormat</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;centuryStart)</code>
<div class="block">Constructs a new FastDateFormat.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#equals-java.lang.Object-">equals</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;obj)</code>
<div class="block">Compares two objects for equality.</div>
</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#format-java.util.Calendar-">format</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;calendar)</code>
<div class="block">Formats a <code>Calendar</code> object.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>&lt;B extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Appendable.html?is-external=true" title="class or interface in java.lang">Appendable</a>&gt;<br>B</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#format-java.util.Calendar-B-">format</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;calendar,
B&nbsp;buf)</code>
<div class="block">Formats a <code>Calendar</code> object into the
supplied <code>StringBuffer</code>.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#format-java.util.Date-">format</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;date)</code>
<div class="block">Formats a <code>Date</code> object using a <code>GregorianCalendar</code>.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>&lt;B extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Appendable.html?is-external=true" title="class or interface in java.lang">Appendable</a>&gt;<br>B</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#format-java.util.Date-B-">format</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;date,
B&nbsp;buf)</code>
<div class="block">Formats a <code>Date</code> object into the
supplied <code>StringBuffer</code> using a <code>GregorianCalendar</code>.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#format-long-">format</a></span>(long&nbsp;millis)</code>
<div class="block">Formats a millisecond <code>long</code> value.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>&lt;B extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Appendable.html?is-external=true" title="class or interface in java.lang">Appendable</a>&gt;<br>B</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#format-long-B-">format</a></span>(long&nbsp;millis,
B&nbsp;buf)</code>
<div class="block">Formats a millisecond <code>long</code> value into the
supplied <code>StringBuffer</code>.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#format-java.lang.Object-java.lang.StringBuilder-java.text.FieldPosition-">format</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;obj,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;toAppendTo,
<a href="https://docs.oracle.com/javase/8/docs/api/java/text/FieldPosition.html?is-external=true" title="class or interface in java.text">FieldPosition</a>&nbsp;pos)</code>
<div class="block">Formats a <code>Date</code>, <code>Calendar</code> or
<code>Long</code> (milliseconds) object.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateInstance-int-">getDateInstance</a></span>(int&nbsp;style)</code>
<div class="block">Gets a date formatter instance using the specified style in the
default time zone and locale.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateInstance-int-java.util.Locale-">getDateInstance</a></span>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</code>
<div class="block">Gets a date formatter instance using the specified style and
locale in the default time zone.</div>
</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateInstance-int-java.util.TimeZone-">getDateInstance</a></span>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone)</code>
<div class="block">Gets a date formatter instance using the specified style and
time zone in the default locale.</div>
</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateInstance-int-java.util.TimeZone-java.util.Locale-">getDateInstance</a></span>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</code>
<div class="block">Gets a date formatter instance using the specified style, time
zone and locale.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateTimeInstance-int-int-">getDateTimeInstance</a></span>(int&nbsp;dateStyle,
int&nbsp;timeStyle)</code>
<div class="block">Gets a date/time formatter instance using the specified style
in the default time zone and locale.</div>
</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateTimeInstance-int-int-java.util.Locale-">getDateTimeInstance</a></span>(int&nbsp;dateStyle,
int&nbsp;timeStyle,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</code>
<div class="block">Gets a date/time formatter instance using the specified style and
locale in the default time zone.</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateTimeInstance-int-int-java.util.TimeZone-">getDateTimeInstance</a></span>(int&nbsp;dateStyle,
int&nbsp;timeStyle,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone)</code>
<div class="block">Gets a date/time formatter instance using the specified style and
time zone in the default locale.</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getDateTimeInstance-int-int-java.util.TimeZone-java.util.Locale-">getDateTimeInstance</a></span>(int&nbsp;dateStyle,
int&nbsp;timeStyle,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</code>
<div class="block">Gets a date/time formatter instance using the specified style,
time zone and locale.</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getInstance--">getInstance</a></span>()</code>
<div class="block">Gets a formatter instance using the default pattern in the
default locale.</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getInstance-java.lang.String-">getInstance</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern)</code>
<div class="block">Gets a formatter instance using the specified pattern in the
default locale.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getInstance-java.lang.String-java.util.Locale-">getInstance</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</code>
<div class="block">Gets a formatter instance using the specified pattern and
locale.</div>
</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getInstance-java.lang.String-java.util.TimeZone-">getInstance</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone)</code>
<div class="block">Gets a formatter instance using the specified pattern and
time zone.</div>
</td>
</tr>
<tr id="i20" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getInstance-java.lang.String-java.util.TimeZone-java.util.Locale-">getInstance</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</code>
<div class="block">Gets a formatter instance using the specified pattern, time zone
and locale.</div>
</td>
</tr>
<tr id="i21" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getLocale--">getLocale</a></span>()</code>
<div class="block">Gets the locale used by this formatter.</div>
</td>
</tr>
<tr id="i22" class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getMaxLengthEstimate--">getMaxLengthEstimate</a></span>()</code>
<div class="block">Gets an estimate for the maximum string length that the
formatter will produce.</div>
</td>
</tr>
<tr id="i23" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getPattern--">getPattern</a></span>()</code>
<div class="block">Gets the pattern used by this formatter.</div>
</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getTimeInstance-int-">getTimeInstance</a></span>(int&nbsp;style)</code>
<div class="block">Gets a time formatter instance using the specified style in the
default time zone and locale.</div>
</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getTimeInstance-int-java.util.Locale-">getTimeInstance</a></span>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</code>
<div class="block">Gets a time formatter instance using the specified style and
locale in the default time zone.</div>
</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getTimeInstance-int-java.util.TimeZone-">getTimeInstance</a></span>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone)</code>
<div class="block">Gets a time formatter instance using the specified style and
time zone in the default locale.</div>
</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>static <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getTimeInstance-int-java.util.TimeZone-java.util.Locale-">getTimeInstance</a></span>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</code>
<div class="block">Gets a time formatter instance using the specified style, time
zone and locale.</div>
</td>
</tr>
<tr id="i28" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#getTimeZone--">getTimeZone</a></span>()</code>
<div class="block">Gets the time zone used by this formatter.</div>
</td>
</tr>
<tr id="i29" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#hashCode--">hashCode</a></span>()</code>
<div class="block">Returns a hash code compatible with equals.</div>
</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#parse-java.lang.String-">parse</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;source)</code>
<div class="block">Equivalent to DateFormat.parse(String).</div>
</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#parse-java.lang.String-java.text.ParsePosition-">parse</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;source,
<a href="https://docs.oracle.com/javase/8/docs/api/java/text/ParsePosition.html?is-external=true" title="class or interface in java.text">ParsePosition</a>&nbsp;pos)</code>
<div class="block">Equivalent to DateFormat.parse(String, ParsePosition).</div>
</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#parse-java.lang.String-java.text.ParsePosition-java.util.Calendar-">parse</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;source,
<a href="https://docs.oracle.com/javase/8/docs/api/java/text/ParsePosition.html?is-external=true" title="class or interface in java.text">ParsePosition</a>&nbsp;pos,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;calendar)</code>
<div class="block">Parses a formatted date string according to the format.</div>
</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#parseObject-java.lang.String-java.text.ParsePosition-">parseObject</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;source,
<a href="https://docs.oracle.com/javase/8/docs/api/java/text/ParsePosition.html?is-external=true" title="class or interface in java.text">ParsePosition</a>&nbsp;pos)</code>
<div class="block">Parses a date/time string according to the given parse position.</div>
</td>
</tr>
<tr id="i34" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#toString--">toString</a></span>()</code>
<div class="block">Gets a debugging string version of this formatter.</div>
</td>
</tr>
</table>
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<h3>Methods inherited from class&nbsp;org.apache.logging.log4j.core.util.datetime.<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html" title="class in org.apache.logging.log4j.core.util.datetime">Format</a></h3>
<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html#format-java.lang.Object-">format</a>, <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html#parseObject-java.lang.String-">parseObject</a></code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;org.apache.logging.log4j.core.util.datetime.<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a></h3>
<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#parseObject-java.lang.String-">parseObject</a></code></li>
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<h4>FULL</h4>
<pre>public static final&nbsp;int <a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.88">FULL</a></pre>
<div class="block">FULL locale dependent date or time style.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../constant-values.html#org.apache.logging.log4j.core.util.datetime.FastDateFormat.FULL">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int <a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.93">LONG</a></pre>
<div class="block">LONG locale dependent date or time style.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../constant-values.html#org.apache.logging.log4j.core.util.datetime.FastDateFormat.LONG">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int <a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.98">MEDIUM</a></pre>
<div class="block">MEDIUM locale dependent date or time style.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../constant-values.html#org.apache.logging.log4j.core.util.datetime.FastDateFormat.MEDIUM">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int <a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.103">SHORT</a></pre>
<div class="block">SHORT locale dependent date or time style.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../constant-values.html#org.apache.logging.log4j.core.util.datetime.FastDateFormat.SHORT">Constant Field Values</a></dd>
</dl>
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<h4>FastDateFormat</h4>
<pre>protected&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.385">FastDateFormat</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</pre>
<div class="block"><p>Constructs a new FastDateFormat.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pattern</code> - <a href="https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><code>SimpleDateFormat</code></a> compatible pattern</dd>
<dd><code>timeZone</code> - non-null time zone to use</dd>
<dd><code>locale</code> - non-null locale to use</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if pattern, timeZone, or locale is null.</dd>
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<h4>FastDateFormat</h4>
<pre>protected&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.400">FastDateFormat</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;centuryStart)</pre>
<div class="block"><p>Constructs a new FastDateFormat.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pattern</code> - <a href="https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><code>SimpleDateFormat</code></a> compatible pattern</dd>
<dd><code>timeZone</code> - non-null time zone to use</dd>
<dd><code>locale</code> - non-null locale to use</dd>
<dd><code>centuryStart</code> - The start of the 100 year period to use as the "default century" for 2 digit year parsing. If centuryStart is null, defaults to now - 80 years</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/NullPointerException.html?is-external=true" title="class or interface in java.lang">NullPointerException</a></code> - if pattern, timeZone, or locale is null.</dd>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.122">getInstance</a>()</pre>
<div class="block"><p>Gets a formatter instance using the default pattern in the
default locale.</p></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a date/time formatter</dd>
</dl>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.135">getInstance</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern)</pre>
<div class="block"><p>Gets a formatter instance using the specified pattern in the
default locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pattern</code> - <a href="https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><code>SimpleDateFormat</code></a> compatible
pattern</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a pattern based date/time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if pattern is invalid</dd>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.150">getInstance</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone)</pre>
<div class="block"><p>Gets a formatter instance using the specified pattern and
time zone.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pattern</code> - <a href="https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><code>SimpleDateFormat</code></a> compatible
pattern</dd>
<dd><code>timeZone</code> - optional time zone, overrides time zone of
formatted date</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a pattern based date/time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if pattern is invalid</dd>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.164">getInstance</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</pre>
<div class="block"><p>Gets a formatter instance using the specified pattern and
locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pattern</code> - <a href="https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><code>SimpleDateFormat</code></a> compatible
pattern</dd>
<dd><code>locale</code> - optional locale, overrides system locale</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a pattern based date/time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if pattern is invalid</dd>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.181">getInstance</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;pattern,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</pre>
<div class="block"><p>Gets a formatter instance using the specified pattern, time zone
and locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>pattern</code> - <a href="https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><code>SimpleDateFormat</code></a> compatible
pattern</dd>
<dd><code>timeZone</code> - optional time zone, overrides time zone of
formatted date</dd>
<dd><code>locale</code> - optional locale, overrides system locale</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a pattern based date/time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if pattern is invalid
or <code>null</code></dd>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.196">getDateInstance</a>(int&nbsp;style)</pre>
<div class="block"><p>Gets a date formatter instance using the specified style in the
default time zone and locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>style</code> - date style: FULL, LONG, MEDIUM, or SHORT</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard date formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no date
pattern defined</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
</li>
</ul>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.211">getDateInstance</a>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</pre>
<div class="block"><p>Gets a date formatter instance using the specified style and
locale in the default time zone.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>style</code> - date style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>locale</code> - optional locale, overrides system locale</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard date formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no date
pattern defined</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
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</ul>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.227">getDateInstance</a>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone)</pre>
<div class="block"><p>Gets a date formatter instance using the specified style and
time zone in the default locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>style</code> - date style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeZone</code> - optional time zone, overrides time zone of
formatted date</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard date formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no date
pattern defined</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.243">getDateInstance</a>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</pre>
<div class="block"><p>Gets a date formatter instance using the specified style, time
zone and locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>style</code> - date style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeZone</code> - optional time zone, overrides time zone of
formatted date</dd>
<dd><code>locale</code> - optional locale, overrides system locale</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard date formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no date
pattern defined</dd>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.258">getTimeInstance</a>(int&nbsp;style)</pre>
<div class="block"><p>Gets a time formatter instance using the specified style in the
default time zone and locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>style</code> - time style: FULL, LONG, MEDIUM, or SHORT</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no time
pattern defined</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
</li>
</ul>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.273">getTimeInstance</a>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</pre>
<div class="block"><p>Gets a time formatter instance using the specified style and
locale in the default time zone.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>style</code> - time style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>locale</code> - optional locale, overrides system locale</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no time
pattern defined</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
</li>
</ul>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.289">getTimeInstance</a>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone)</pre>
<div class="block"><p>Gets a time formatter instance using the specified style and
time zone in the default locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>style</code> - time style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeZone</code> - optional time zone, overrides time zone of
formatted time</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no time
pattern defined</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
</li>
</ul>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.305">getTimeInstance</a>(int&nbsp;style,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</pre>
<div class="block"><p>Gets a time formatter instance using the specified style, time
zone and locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>style</code> - time style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeZone</code> - optional time zone, overrides time zone of
formatted time</dd>
<dd><code>locale</code> - optional locale, overrides system locale</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no time
pattern defined</dd>
</dl>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.321">getDateTimeInstance</a>(int&nbsp;dateStyle,
int&nbsp;timeStyle)</pre>
<div class="block"><p>Gets a date/time formatter instance using the specified style
in the default time zone and locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dateStyle</code> - date style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeStyle</code> - time style: FULL, LONG, MEDIUM, or SHORT</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard date/time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no date/time
pattern defined</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
</li>
</ul>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.337">getDateTimeInstance</a>(int&nbsp;dateStyle,
int&nbsp;timeStyle,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</pre>
<div class="block"><p>Gets a date/time formatter instance using the specified style and
locale in the default time zone.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dateStyle</code> - date style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeStyle</code> - time style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>locale</code> - optional locale, overrides system locale</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard date/time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no date/time
pattern defined</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
</li>
</ul>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.354">getDateTimeInstance</a>(int&nbsp;dateStyle,
int&nbsp;timeStyle,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone)</pre>
<div class="block"><p>Gets a date/time formatter instance using the specified style and
time zone in the default locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dateStyle</code> - date style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeStyle</code> - time style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeZone</code> - optional time zone, overrides time zone of
formatted date</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard date/time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no date/time
pattern defined</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
</li>
</ul>
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<pre>public static&nbsp;<a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/FastDateFormat.html" title="class in org.apache.logging.log4j.core.util.datetime">FastDateFormat</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.370">getDateTimeInstance</a>(int&nbsp;dateStyle,
int&nbsp;timeStyle,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;timeZone,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;locale)</pre>
<div class="block"><p>Gets a date/time formatter instance using the specified style,
time zone and locale.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>dateStyle</code> - date style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeStyle</code> - time style: FULL, LONG, MEDIUM, or SHORT</dd>
<dd><code>timeZone</code> - optional time zone, overrides time zone of
formatted date</dd>
<dd><code>locale</code> - optional locale, overrides system locale</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a localized standard date/time formatter</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the Locale has no date/time
pattern defined</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.418">format</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;obj,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;toAppendTo,
<a href="https://docs.oracle.com/javase/8/docs/api/java/text/FieldPosition.html?is-external=true" title="class or interface in java.text">FieldPosition</a>&nbsp;pos)</pre>
<div class="block"><p>Formats a <code>Date</code>, <code>Calendar</code> or
<code>Long</code> (milliseconds) object.</p>
This method is an implementation of <a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html#format-java.lang.Object-java.lang.StringBuilder-java.text.FieldPosition-"><code>Format.format(Object, StringBuilder, FieldPosition)</code></a></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#format-java.lang.Object-java.lang.StringBuilder-java.text.FieldPosition-">format</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html#format-java.lang.Object-java.lang.StringBuilder-java.text.FieldPosition-">format</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html" title="class in org.apache.logging.log4j.core.util.datetime">Format</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>obj</code> - the object to format</dd>
<dd><code>toAppendTo</code> - the buffer to append to</dd>
<dd><code>pos</code> - the position - ignored</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the buffer passed in</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/text/DateFormat.html?is-external=true#format-java.lang.Object-java.lang.StringBuffer-java.text.FieldPosition-" title="class or interface in java.text"><code>DateFormat.format(Object, StringBuffer, FieldPosition)</code></a></dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.430">format</a>(long&nbsp;millis)</pre>
<div class="block"><p>Formats a millisecond <code>long</code> value.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#format-long-">format</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>millis</code> - the millisecond value to format</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the formatted string</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.1</dd>
</dl>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.441">format</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;date)</pre>
<div class="block"><p>Formats a <code>Date</code> object using a <code>GregorianCalendar</code>.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#format-java.util.Date-">format</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>date</code> - the date to format</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the formatted string</dd>
</dl>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.452">format</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;calendar)</pre>
<div class="block"><p>Formats a <code>Calendar</code> object.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#format-java.util.Calendar-">format</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>calendar</code> - the calendar to format</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the formatted string</dd>
</dl>
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<pre>public&nbsp;&lt;B extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Appendable.html?is-external=true" title="class or interface in java.lang">Appendable</a>&gt;&nbsp;B&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.466">format</a>(long&nbsp;millis,
B&nbsp;buf)</pre>
<div class="block"><p>Formats a millisecond <code>long</code> value into the
supplied <code>StringBuffer</code>.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#format-long-B-">format</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>B</code> - the Appendable class type, usually StringBuilder or StringBuffer.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>millis</code> - the millisecond value to format</dd>
<dd><code>buf</code> - the buffer to format into</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the specified string buffer</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>3.5</dd>
</dl>
</li>
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<pre>public&nbsp;&lt;B extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Appendable.html?is-external=true" title="class or interface in java.lang">Appendable</a>&gt;&nbsp;B&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.480">format</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;date,
B&nbsp;buf)</pre>
<div class="block"><p>Formats a <code>Date</code> object into the
supplied <code>StringBuffer</code> using a <code>GregorianCalendar</code>.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#format-java.util.Date-B-">format</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>B</code> - the Appendable class type, usually StringBuilder or StringBuffer.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>date</code> - the date to format</dd>
<dd><code>buf</code> - the buffer to format into</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the specified string buffer</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>3.5</dd>
</dl>
</li>
</ul>
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<pre>public&nbsp;&lt;B extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Appendable.html?is-external=true" title="class or interface in java.lang">Appendable</a>&gt;&nbsp;B&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.494">format</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;calendar,
B&nbsp;buf)</pre>
<div class="block"><p>Formats a <code>Calendar</code> object into the
supplied <code>StringBuffer</code>.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#format-java.util.Calendar-B-">format</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>B</code> - the Appendable class type, usually StringBuilder or StringBuffer.</dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>calendar</code> - the calendar to format</dd>
<dd><code>buf</code> - the buffer to format into</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the specified string buffer</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>3.5</dd>
</dl>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.506">parse</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;source)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/text/ParseException.html?is-external=true" title="class or interface in java.text">ParseException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#parse-java.lang.String-">DateParser</a></code></span></div>
<div class="block">Equivalent to DateFormat.parse(String).
See <a href="https://docs.oracle.com/javase/8/docs/api/java/text/DateFormat.html?is-external=true#parse-java.lang.String-" title="class or interface in java.text"><code>DateFormat.parse(String)</code></a> for more information.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#parse-java.lang.String-">parse</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>source</code> - A <code>String</code> whose beginning should be parsed.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A <code>Date</code> parsed from the string</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/text/ParseException.html?is-external=true" title="class or interface in java.text">ParseException</a></code> - if the beginning of the specified string cannot be parsed.</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Date.html?is-external=true" title="class or interface in java.util">Date</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.514">parse</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;source,
<a href="https://docs.oracle.com/javase/8/docs/api/java/text/ParsePosition.html?is-external=true" title="class or interface in java.text">ParsePosition</a>&nbsp;pos)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#parse-java.lang.String-java.text.ParsePosition-">DateParser</a></code></span></div>
<div class="block">Equivalent to DateFormat.parse(String, ParsePosition).
See <a href="https://docs.oracle.com/javase/8/docs/api/java/text/DateFormat.html?is-external=true#parse-java.lang.String-java.text.ParsePosition-" title="class or interface in java.text"><code>DateFormat.parse(String, ParsePosition)</code></a> for more information.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#parse-java.lang.String-java.text.ParsePosition-">parse</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>source</code> - A <code>String</code>, part of which should be parsed.</dd>
<dd><code>pos</code> - A <code>ParsePosition</code> object with index and error index information
as described above.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A <code>Date</code> parsed from the string. In case of error, returns null.</dd>
</dl>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.523">parse</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;source,
<a href="https://docs.oracle.com/javase/8/docs/api/java/text/ParsePosition.html?is-external=true" title="class or interface in java.text">ParsePosition</a>&nbsp;pos,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Calendar.html?is-external=true" title="class or interface in java.util">Calendar</a>&nbsp;calendar)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#parse-java.lang.String-java.text.ParsePosition-java.util.Calendar-">DateParser</a></code></span></div>
<div class="block">Parses a formatted date string according to the format. Updates the Calendar with parsed fields.
Upon success, the ParsePosition index is updated to indicate how much of the source text was consumed.
Not all source text needs to be consumed. Upon parse failure, ParsePosition error index is updated to
the offset of the source text which does not match the supplied format.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#parse-java.lang.String-java.text.ParsePosition-java.util.Calendar-">parse</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>source</code> - The text to parse.</dd>
<dd><code>pos</code> - On input, the position in the source to start parsing, on output, updated position.</dd>
<dd><code>calendar</code> - The calendar into which to set parsed fields.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true, if source has been parsed (pos parsePosition is updated); otherwise false (and pos errorIndex is updated)</dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.531">parseObject</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;source,
<a href="https://docs.oracle.com/javase/8/docs/api/java/text/ParsePosition.html?is-external=true" title="class or interface in java.text">ParsePosition</a>&nbsp;pos)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#parseObject-java.lang.String-java.text.ParsePosition-">DateParser</a></code></span></div>
<div class="block">Parses a date/time string according to the given parse position.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#parseObject-java.lang.String-java.text.ParsePosition-">parseObject</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html#parseObject-java.lang.String-java.text.ParsePosition-">parseObject</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/Format.html" title="class in org.apache.logging.log4j.core.util.datetime">Format</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>source</code> - A <code>String</code> whose beginning should be parsed.</dd>
<dd><code>pos</code> - the parse position</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a <code>java.util.Date</code> object</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/text/DateFormat.html?is-external=true#parseObject-java.lang.String-java.text.ParsePosition-" title="class or interface in java.text"><code>DateFormat.parseObject(String, ParsePosition)</code></a></dd>
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<h4>getPattern</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.543">getPattern</a>()</pre>
<div class="block"><p>Gets the pattern used by this formatter.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#getPattern--">getPattern</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#getPattern--">getPattern</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the pattern, <a href="https://docs.oracle.com/javase/8/docs/api/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><code>SimpleDateFormat</code></a> compatible</dd>
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<a name="getTimeZone--">
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<h4>getTimeZone</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/TimeZone.html?is-external=true" title="class or interface in java.util">TimeZone</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.555">getTimeZone</a>()</pre>
<div class="block"><p>Gets the time zone used by this formatter.</p>
<p>This zone is always used for <code>Date</code> formatting. </p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#getTimeZone--">getTimeZone</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#getTimeZone--">getTimeZone</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the time zone</dd>
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<h4>getLocale</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Locale.html?is-external=true" title="class or interface in java.util">Locale</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.565">getLocale</a>()</pre>
<div class="block"><p>Gets the locale used by this formatter.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html#getLocale--">getLocale</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DateParser.html" title="interface in org.apache.logging.log4j.core.util.datetime">DateParser</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html#getLocale--">getLocale</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../org/apache/logging/log4j/core/util/datetime/DatePrinter.html" title="interface in org.apache.logging.log4j.core.util.datetime">DatePrinter</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the locale</dd>
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<h4>getMaxLengthEstimate</h4>
<pre>public&nbsp;int&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.578">getMaxLengthEstimate</a>()</pre>
<div class="block"><p>Gets an estimate for the maximum string length that the
formatter will produce.</p>
<p>The actual formatted length will almost always be less than or
equal to this amount.</p></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the maximum formatted length</dd>
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<h4>equals</h4>
<pre>public&nbsp;boolean&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.591">equals</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;obj)</pre>
<div class="block"><p>Compares two objects for equality.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>obj</code> - the object to compare to</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if equal</dd>
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<h4>hashCode</h4>
<pre>public&nbsp;int&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.606">hashCode</a>()</pre>
<div class="block"><p>Returns a hash code compatible with equals.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a hash code compatible with equals</dd>
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<h4>toString</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../../../../src-html/org/apache/logging/log4j/core/util/datetime/FastDateFormat.html#line.616">toString</a>()</pre>
<div class="block"><p>Gets a debugging string version of this formatter.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a debugging string</dd>
</dl>
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