Dinesh on Java

Categories: JSTL

JSTL IF Tag <c:if>

JSTL c:if tag is used as a conditional statement in JSP. It is similar like If statement in JAVA. Based on condition evaluation within test attribute, if tag decides to run the code within JSTL IF tag.

JSTL <c:if> tag Example:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <title>JSTL if tag Example</title>
  </head>
  <body>

<c:set var="salary" scope="session" value="${100000}"/>
     <c:if test="${salary> 0}"/>
         <c:out value="${salary}"/>
     </c:if>
  </body>
</html>

As you can see above, in the JSTL c:if tag, test attribute check the condition and if condition returns true, it executes the other statements within <c:if> and </c:if> statement.

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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!