Here you can find the source of format(Date aTs_Datetime)
public static String format(Date aTs_Datetime)
//package com.java2s; //License from project: Apache License import java.text.SimpleDateFormat; import java.util.Date; public class Main { public static String format(Date aTs_Datetime) { return format(aTs_Datetime, "yyyy-MM-dd"); }/*from w w w.j av a 2 s . com*/ public static String format(Date aTs_Datetime, String as_Pattern) { if (aTs_Datetime == null || as_Pattern == null) return null; SimpleDateFormat dateFromat = new SimpleDateFormat(); dateFromat.applyPattern(as_Pattern); return dateFromat.format(aTs_Datetime); } }