Java tutorial
//package com.java2s; public class Main { public static String makeTimeString(long milliSecs) { StringBuffer sb = new StringBuffer(); long m = milliSecs / (60 * 1000); sb.append(m < 10 ? "0" + m : m); sb.append(":"); long s = (milliSecs % (60 * 1000)) / 1000; sb.append(s < 10 ? "0" + s : s); return sb.toString(); } }