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<div class="subTitle">org.apache.openjpa.lib.util</div>
<h2 title="Class StringUtil" class="title">Class StringUtil</h2>
</div>
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<pre>public final class <span class="typeNameLabel">StringUtil</span>
extends <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></pre>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<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>static <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/openjpa/lib/util/StringUtil.html#capitalize-java.lang.String-">capitalize</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;str)</code>
<div class="block">Capitalizes a String changing the first letter to title case as
per <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html?is-external=true#toTitleCase-char-" title="class or interface in java.lang"><code>Character.toTitleCase(char)</code></a>.</div>
</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#contains-java.lang.String-char-">contains</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;val,
char&nbsp;charToSearchFor)</code>&nbsp;</td>
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<tr id="i2" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#endsWithIgnoreCase-java.lang.String-java.lang.String-">endsWithIgnoreCase</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;str,
<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;suffix)</code>&nbsp;</td>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#equalsIgnoreCase-java.lang.String-java.lang.String-">equalsIgnoreCase</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;str1,
<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;str2)</code>&nbsp;</td>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#isBlank-java.lang.CharSequence-">isBlank</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang">CharSequence</a>&nbsp;cs)</code>
<div class="block">Checks if a CharSequence is whitespace, empty ("") or null.</div>
</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#isEmpty-java.lang.String-">isEmpty</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;val)</code>&nbsp;</td>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#isNotBlank-java.lang.CharSequence-">isNotBlank</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang">CharSequence</a>&nbsp;cs)</code>
<div class="block">Checks if a CharSequence is not empty (""), not null and not whitespace only.</div>
</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#isNotEmpty-java.lang.String-">isNotEmpty</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;val)</code>&nbsp;</td>
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<td class="colFirst"><code>static <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>
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<td class="colFirst"><code>static &lt;T&gt;&nbsp;T</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#parse-java.lang.String-java.lang.Class-">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;val,
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<div class="block">Parse the given</div>
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<td class="colFirst"><code>static <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>
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<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;from,
<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;to)</code>
<div class="block">Replace all instances of <code>from</code> in <code>str</code>
with <code>to</code>.</div>
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<td class="colFirst"><code>static <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/openjpa/lib/util/StringUtil.html#split-java.lang.String-java.lang.String-int-">split</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;str,
<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;token,
int&nbsp;max)</code>
<div class="block">Splits the given string on the given token.</div>
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<td class="colFirst"><code>static <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/openjpa/lib/util/StringUtil.html#stripEnd-java.lang.String-java.lang.String-">stripEnd</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;str,
<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;stripChars)</code>
<div class="block">Strips any of a set of characters from the end of a String.</div>
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<tr id="i13" class="rowColor">
<td class="colFirst"><code>static <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/openjpa/lib/util/StringUtil.html#trim-java.lang.String-">trim</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;str)</code>
<div class="block">Null-safe <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true#trim--" title="class or interface in java.lang"><code>String.trim()</code></a></div>
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<td class="colFirst"><code>static <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/openjpa/lib/util/StringUtil.html#trimToNull-java.lang.String-">trimToNull</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;str)</code>&nbsp;</td>
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<td class="colFirst"><code>static <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>
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<div class="block">Uncapitalizes a String changing the first letter to title case as
per <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html?is-external=true#toLowerCase-char-" title="class or interface in java.lang"><code>Character.toLowerCase(char)</code></a>.</div>
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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>
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<pre>public static&nbsp;boolean&nbsp;isEmpty(<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;val)</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the given string is null or empty.</dd>
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<pre>public static&nbsp;boolean&nbsp;isNotEmpty(<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;val)</pre>
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<pre>public static&nbsp;boolean&nbsp;isBlank(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang">CharSequence</a>&nbsp;cs)</pre>
<div class="block"><p>Checks if a CharSequence is whitespace, empty ("") or null.</p>
<pre>
StringUtils.isBlank(null) = true
StringUtils.isBlank("") = true
StringUtils.isBlank(" ") = true
StringUtils.isBlank("bob") = false
StringUtils.isBlank(" bob ") = false
</pre>
Ported over from Apache commons-lang3</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cs</code> - the CharSequence to check, may be null</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the CharSequence is null, empty or whitespace</dd>
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<pre>public static&nbsp;boolean&nbsp;isNotBlank(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang">CharSequence</a>&nbsp;cs)</pre>
<div class="block"><p>Checks if a CharSequence is not empty (""), not null and not whitespace only.</p>
<pre>
StringUtils.isNotBlank(null) = false
StringUtils.isNotBlank("") = false
StringUtils.isNotBlank(" ") = false
StringUtils.isNotBlank("bob") = true
StringUtils.isNotBlank(" bob ") = true
</pre>
Ported over from Apache commons-lang3</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>cs</code> - the CharSequence to check, may be null</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the CharSequence is not empty and not null and not whitespace</dd>
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<pre>public static&nbsp;boolean&nbsp;contains(<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;val,
char&nbsp;charToSearchFor)</pre>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>val</code> - the string to search in</dd>
<dd><code>charToSearchFor</code> - the character to search for</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the charToSearchFor is contained in the String val</dd>
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<pre>public static&nbsp;boolean&nbsp;equalsIgnoreCase(<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;str1,
<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;str2)</pre>
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<pre>public static&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;split(<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;str,
<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;token,
int&nbsp;max)</pre>
<div class="block">Splits the given string on the given token. Follows the semantics
of the Java 1.4 <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true#split-java.lang.String-int-" title="class or interface in java.lang"><code>String.split(String, int)</code></a> method, but does
not treat the given token as a regular expression.</div>
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<h4>replace</h4>
<pre>public static&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;replace(<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;str,
<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;from,
<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;to)</pre>
<div class="block">Replace all instances of <code>from</code> in <code>str</code>
with <code>to</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>str</code> - the candidate string to replace</dd>
<dd><code>from</code> - the token to replace</dd>
<dd><code>to</code> - the new token</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the string with all the replacements made</dd>
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<pre>public static&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;trim(<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;str)</pre>
<div class="block">Null-safe <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true#trim--" title="class or interface in java.lang"><code>String.trim()</code></a></div>
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<pre>public static&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;trimToNull(<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;str)</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the trimmed string str or <code>null</code> if the trimmed string would be empty.</dd>
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<h4>join</h4>
<pre>public static&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;join(<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;values,
<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;joinToken)</pre>
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<h4>parse</h4>
<pre>public static&nbsp;&lt;T&gt;&nbsp;T&nbsp;parse(<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;val,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;type)</pre>
<div class="block">Parse the given</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>val</code> - value to parse</dd>
<dd><code>type</code> - the target type of the the parsed value</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the converted value</dd>
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<pre>public static&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;capitalize(<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;str)</pre>
<div class="block"><p>Capitalizes a String changing the first letter to title case as
per <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html?is-external=true#toTitleCase-char-" title="class or interface in java.lang"><code>Character.toTitleCase(char)</code></a>. No other letters are changed.</p>
<pre>
StringUtil.capitalize(null) = null
StringUtil.capitalize("") = ""
StringUtil.capitalize("cat") = "Cat"
StringUtil.capitalize("cAt") = "CAt"
</pre>
Ported over from Apache commons-lang3</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>str</code> - the String to capitalize, may be null</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the capitalized String, <code>null</code> if null String input</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#uncapitalize-java.lang.String-"><code>uncapitalize(String)</code></a></dd>
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<pre>public static&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;uncapitalize(<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;str)</pre>
<div class="block"><p>Uncapitalizes a String changing the first letter to title case as
per <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html?is-external=true#toLowerCase-char-" title="class or interface in java.lang"><code>Character.toLowerCase(char)</code></a>. No other letters are changed.</p>
<pre>
StringUtil.uncapitalize(null) = null
StringUtil.uncapitalize("") = ""
StringUtil.uncapitalize("Cat") = "cat"
StringUtil.uncapitalize("CAT") = "cAT"
</pre>
Ported over from Apache commons-lang3</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>str</code> - the String to uncapitalize, may be null</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the uncapitalized String, <code>null</code> if null String input</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/openjpa/lib/util/StringUtil.html#capitalize-java.lang.String-"><code>capitalize(String)</code></a></dd>
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<pre>public static&nbsp;boolean&nbsp;endsWithIgnoreCase(<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;str,
<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;suffix)</pre>
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<pre>public static&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;stripEnd(<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;str,
<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;stripChars)</pre>
<div class="block"><p>Strips any of a set of characters from the end of a String.</p>
<p>A <code>null</code> input String returns <code>null</code>.
An empty string ("") input returns the empty string.</p>
<p>If the stripChars String is <code>null</code>, whitespace is
stripped as defined by <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Character.html?is-external=true#isWhitespace-char-" title="class or interface in java.lang"><code>Character.isWhitespace(char)</code></a>.</p>
<pre>
StringUtils.stripEnd(null, *) = null
StringUtils.stripEnd("", *) = ""
StringUtils.stripEnd("abc", "") = "abc"
StringUtils.stripEnd("abc", null) = "abc"
StringUtils.stripEnd(" abc", null) = " abc"
StringUtils.stripEnd("abc ", null) = "abc"
StringUtils.stripEnd(" abc ", null) = " abc"
StringUtils.stripEnd(" abcyx", "xyz") = " abc"
StringUtils.stripEnd("120.00", ".0") = "12"
</pre>
Ported over from Apache commons-lang3</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>str</code> - the String to remove characters from, may be null</dd>
<dd><code>stripChars</code> - the set of characters to remove, null treated as whitespace</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the stripped String, <code>null</code> if null String input</dd>
</dl>
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