Here you can find the source of getElapsedTime(long startTime, long finishTime)
public static String getElapsedTime(long startTime, long finishTime)
//package com.java2s; /**//w w w. ja va 2 s .c o m * 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. */ import java.text.DecimalFormat; public class Main { static DecimalFormat decimalF = new DecimalFormat("###.0"); public static String getElapsedTime(long startTime, long finishTime) { if (startTime == 0) { return "-"; } return finishTime == 0 ? decimalF.format((System.currentTimeMillis() - startTime) / 1000) + " sec" : decimalF.format((finishTime - startTime) / 1000) + " sec"; } }