How to get array list size in java jsp?

Question

I have a form that ask for user to enter ID. This form is send to a servlet which checks database to see if user exist. If the user exists then it sends me back their ordere

Answer 1

Use fn:length function.

Declare fn namespace on the begining of the JSP file

<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>

Later in the code

${fn:length(collection)}