The catch tag of the core tag library can be used to catch the exception thrown by JSP elements, also the exception can be stored as page scope variables.

  <c:catch var="var" />
  JSP Elements
  </c:catch>

In the above syntax the exception is stored in "var" attribute.

  <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
  <c:catch var ="iexcept">
    <% int x = 7/0;%>
  </c:catch>
  <c:if test = "${iexcept!=null}">
    The exception is :<c:out value="${iexcept}" /><br><br>
  </c:if>

    The exception is :java.lang.ArithmeticException: / by zero

In the above example we have used the "<c:catch" tag to get the exception got by dividing and integer by "0" which is displayed using the variable value of the "catch" statement "iexcept". The message displayed will be "java.lang.ArithmeticException: / by zero".