Here you can find the source of formatTime(long elapsedTime)
public static String formatTime(long elapsedTime)
//package com.java2s; /**//from w w w . j a va2 s .co m * Copyright 2010 The Apache Software Foundation * * 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 formatTime(long elapsedTime) { String format = String.format("%%0%dd", 2); elapsedTime = elapsedTime / 1000; String seconds = String.format(format, elapsedTime % 60); String minutes = String.format(format, (elapsedTime % 3600) / 60); String hours = String.format(format, elapsedTime / 3600); String time = hours + ":" + minutes + ":" + seconds; return time; } }