Here you can find the source of secondsToTimeString(long in_seconds)
public static String secondsToTimeString(long in_seconds)
//package com.java2s; /*// ww w . j av a2 s . c om * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 { public static String secondsToTimeString(long in_seconds) { StringBuilder buff = new StringBuilder(9); if (in_seconds < 0) { buff.append('-'); in_seconds = -in_seconds; } long rest = in_seconds; long hour = rest / 3600; rest = rest % 3600; long minute = rest / 60; rest = rest % 60; long second = rest; if (hour < 10) { buff.append('0'); } buff.append(hour); buff.append(':'); if (minute < 10) { buff.append('0'); } buff.append(minute); buff.append(':'); if (second < 10) { buff.append('0'); } buff.append(second); return buff.toString(); } }