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❮ Jstl Xml Param Tag Jstl Xml Transform Tag ❯

fn:substring() Function

JSP Standard Tag Library

The fn:substring() function returns the substring of a string from a specified start index to an end index.

Syntax

The syntax of the fn:substring() function is as follows:

${fn:substring(<string>, <beginIndex>, <endIndex>)}

Example Demonstration

The following example demonstrates the functionality of this function:

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ 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>

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

<p>Generated substring is : ${string2}</p>

</body>
</html>

The output is as follows:

Generated substring is : is first S

JSP Standard Tag Library

❮ Jstl Xml Param Tag Jstl Xml Transform Tag ❯