Dinesh on Java

Categories: JSTL

JSTL fn:replace() Function

In this tutorial you will learn about the JSTL replace function.
JSTL Replace function is used to replace the string with another string.
This function replaces a string with the other string. It replaces all occurrences of a string.

Syntax:
The fn:replace () function has following syntax:

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

JSTL Replace Function 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 Replace Function Example</title>
</head>
<body>
  <c:out value="${fn:replace('Hello Dinesh','Dinesh','Rajput')}"></c:out>
</body>
</html>

Output: Hello Rajput

As you can see above, JSTL Replace function takes 3 parameters.

First parameter in JSTL replace function is the string which needs to be modified.

Second parameter in JSTL replace function is the target substring which needs to be replaced by .

Third parameter in JSTL replace function is the string which needs to be inserted inplace of second parameter.

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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!