See notes
<c:Remove>
Tags delete variables, whether from a specified range or within a range (if no range is specified). This action is usually not particularly helpful, but it can help ensure that a JSP-scoped resource is responsible for cleanup.
<%@ page language= "java" import= "java.util.*" pageencoding= "Utf-8"%><!-- Core Tags: the tag of the core group is the most commonly used jstl tag. The following is the syntax in your JSP including the JSTL Core library:--><%@ taglib uri= "Http://java.sun.com/jsp/jstl/core" prefix= "C"%>
<c:catch> tag captures any throwable that occurs on its body and is selectively exposed. Simply used for error handling to handle this problem more gracefully. <%@ page language= "java" import= "java.util.*" pageencoding= "Utf-8"%><!-- Core Tags: the tag of the core group is the most commonly used jstl tag. The following is the syntax in your JSP including the JSTL Core library:--><%@ taglib uri= "Http://java.sun.com/jsp/jstl/core" prefix= "C"%>
Jstl Tag Library: Remove label catch label