Here you can find the source of formatDuration(long number)
public static String formatDuration(long number)
//package com.java2s; /*//from w ww . j a va 2 s . co m * Copyright 2006 The National Library of New Zealand * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { private static final long SECS = 1000; private static final long MINS = SECS * 60; private static final long HRS = MINS * 60; public static String formatDuration(long number) { long hrs = number / HRS; number = number % HRS; long mins = number / MINS; number = number % MINS; long secs = number / SECS; number = number % SECS; return hrs + ":" + mins + ":" + secs + "." + number; } }