The function <fn:length()> is the string function. This function used to find out the length of the entered string. This function displays the number of characters entered in the specified string.
Syntax of Function <fn:length()>
int length(Object)
Example of Function <fn:length()>
<!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"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%> <html> <head> <title>JSTL fn:length() example</title> </head> <body> <c:set var="string1" value="JavaBeat" /> <c:set var="string2" value="welcome to JavaBeat.net" /> Length of word JavaBeat is: ${fn:length(string1)} <br> <br> Length of word welcome to JavaBeat.net is: ${fn:length(string2)} <br> <br> </body> </html>
Steps for Execution
- Save this file as example.jsp in your eclipse IDE.
- Now select this jsp file, right mouse click and select Run as ->Run on server
Output
When the execution process is completed successfully we will get the following output :
Previous Tutorial : JSTL Function fn:substring() :: Next Tutorial : JSTL Function fn:toLowerCase()