How to check whether an input string contains a specified substring ignoring the case using JSP?

JSP Java 8 Object Oriented Programming Programming

The fn:containsIgnoreCase() function determines whether an input string contains a specified substring. While doing search it ignores the case.

Syntax

The fn:containsIgnoreCase() function has the following syntax −

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

Example

Following is the example to explain the functionality of the fn:containsIgnoreCase() function −

<%@ 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 test String"/>
      <c:if test = "${fn:containsIgnoreCase(theString, 'test')}">
         <p>Found test string<p>
      </c:if>
      <c:if test = "${fn:containsIgnoreCase(theString, 'TEST')}">
         <p>Found TEST string<p>
       </c:if>
   </body>
</html>

You will receive the following result −