<div dir="ltr" style="text-align: left;" trbidi="on">
<div dir="ltr" style="text-align: left;" trbidi="on">JSTL Substring function is used to get the substring of target string. This function takes 3 parameters.</p>
<p> First parameter in JSTL Substring function is the target String from which you want to derive the substring.</p>
<p> Second parameter in JSTL Substring function is the start index. Character at this index is included in the substring.</p>
<p> Third parameter in JSTL Substring function is the end index. Character at this index is excluded from the substring. Substring will end at the previous index.</p>
<p> The fn:substring() function returns a subset of a string specified by start and end indices.</p>
<p> <b>Syntax:</b><br />
The <i><b>fn:substring ()</b></i> function has following syntax:</p>
<pre class="highlight" name="code">java.lang.String substring(java.lang.String, int, int)
</pre>
<p>
<b>Example:</b></p>
<p> Following is the example to explain the functionality of this function:</p>
<pre class="highlight" name="code"><;%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>;
<;%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>;
<;html>;
<;head>;
<;title>;Using JSTL Functions<;/title>;
<;/head>;
<;body>;

<;c:set var="string1" value="This is first String."/>;
<;c:set var="string2" value="${fn:substring(string1, 5, 15)}" />;

<;p>;Final sub string : ${string2}<;/p>;

<;/body>;
<;/html>;
</pre>
<p>
<b>This would produce following result:</b><br />
<b><br />
</b> <b>Final sub string : is first S</b></p>
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