Java tutorial
//package com.java2s; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; public class Main { public static String toDate(Date date) { DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd"); return dateFormat.format(date); } public static String toDate(Date date, int add) { Calendar calendar = Calendar.getInstance(); calendar.setTime(date); calendar.add(Calendar.DATE, add); return toDate(calendar.getTime()); } }