Here you can find the source of durationToString(int millis)
public static String durationToString(int millis)
//package com.java2s; /* Copyright (c) 2011 Ivan Ivanenko <ivan.ivanenko@gmail.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. *//*from w ww .j av a 2 s . c o m*/ public class Main { public static String durationToString(int millis) { String seconds = "" + (int) ((millis / 1000) % 60); int m = (int) ((millis / 1000) / 60); if (m > 60) { return ""; } String minutes = "" + m; String hours = "" + (int) ((millis / 1000) / 3600); if (seconds.length() == 1) { seconds = "0" + seconds; } if (minutes.length() == 1) { minutes = "0" + minutes; } return String.format("%s:%s", minutes, seconds); } }