Java tutorial
//package com.java2s; //License from project: Open Source License import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; public class Main { public static long getDateAsHeaderId(long milliseconds) { SimpleDateFormat dateFormat = new SimpleDateFormat("ddMMyyyy", Locale.getDefault()); return Long.parseLong(dateFormat.format(new Date(milliseconds))); } }