Dinesh on Java

Categories: JSTL

JSTL fn:endsWith() Function

In this tutorial you will learn about the JSTL fn endsWith function. JSTL endsWith Function returns true or false based on condition evaluation.

To manipulate the string that ends with a specific characters or string in JSP, JSTL provides a function endsWith(). This function helps in to work with the suffix associated with a string.

Syntax:

The fn:endsWith() function has following syntax:

boolean endsWith(java.lang.String, java.lang.String)

JSTL fn endsWith Example-

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>JSTL EndsWith Function Example</title>
</head>
<body>
  <c:set var="array1" value="${fn:endsWith('Hi My name is Dinesh', 'Dinesh')}">
</body>
</html>

Output: true

As you can see above, fn:endsWith() takes two Strings as input parameters.

First parameter in JSTL endsWith function is the target String which needs to be validated.

Second parameter in JSTL endsWith function is the specified string that needs to be matched with starting character sequence of the target string.

If target string ends with same character sequence like the specified string than JSTL endsWith function returns true otherwise returns false.

<%@ 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="theString" value="I am a good programmer in java"/>

<c:if test="${fn:endsWith(theString, 'java')}">
   <p>String ends with java<p>
</c:if>

<c:if test="${fn:endsWith(theString, 'CPP')}">
   <p>String ends with CPP<p>
</c:if>
</body>
</html>

This would produce following result:

String ends with java

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Dinesh Rajput

Dinesh Rajput is the chief editor of a website Dineshonjava, a technical blog dedicated to the Spring and Java technologies. It has a series of articles related to Java technologies. Dinesh has been a Spring enthusiast since 2008 and is a Pivotal Certified Spring Professional, an author of a book Spring 5 Design Pattern, and a blogger. He has more than 10 years of experience with different aspects of Spring and Java design and development. His core expertise lies in the latest version of Spring Framework, Spring Boot, Spring Security, creating REST APIs, Microservice Architecture, Reactive Pattern, Spring AOP, Design Patterns, Struts, Hibernate, Web Services, Spring Batch, Cassandra, MongoDB, and Web Application Design and Architecture. He is currently working as a technology manager at a leading product and web development company. He worked as a developer and tech lead at the Bennett, Coleman & Co. Ltd and was the first developer in his previous company, Paytm. Dinesh is passionate about the latest Java technologies and loves to write technical blogs related to it. He is a very active member of the Java and Spring community on different forums. When it comes to the Spring Framework and Java, Dinesh tops the list!