JSP date manipulation sample: increase time give a date sample...

jsp-date-manipulation-sample.jsp

<%@ page contentType="text/plain; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%@ taglib prefix="wp" uri="/aps-core" %>
<%@ taglib prefix="wpsa" uri="/apsadmin-core" %>
<%@ taglib prefix="wpsf" uri="/apsadmin-form" %>
<c:set var="random"><%= java.lang.Math.round(java.lang.Math.random() * 6) %></c:set>
<c:set var="startDate" value="${param.lastStreamTimestamp}" />
<fmt:parseDate value="${startDate}" pattern="yyyy-MM-dd HH:mm:ss SSSS" var="startDate" type="both" />
<c:forEach begin="0" end="${random}" varStatus="s">
	<fmt:parseDate value="${param.lastStreamTimestamp}" pattern="yyyy-MM-dd HH:mm:ss SSSS" var="startDate" type="both" />
	<c:set var="currentDate" value="${startDate}" />
	<c:set var="currentDate_time"><jsp:getProperty name="currentDate" property="time" /></c:set>
	currentDate unouched:	<jsp:getProperty name="currentDate" property="time" />
	<c:set var="currentDate_time" value="${currentDate_time + ((1000 * 60 * 60 * 25) * (random+1-s.index))}" />
	<jsp:setProperty name="currentDate" property="time" value="${currentDate_time}" />
	currentDate added	<jsp:getProperty name="currentDate" property="time" />
	currentDate date	<fmt:formatDate value="${currentDate}" pattern="yyyy-MM-dd HH:mm:ss SSSS" />
	<c:remove var="currentDate" />
	--
</c:forEach>