Here you can find the source of getDiffTime(long startTime)
public static String getDiffTime(long startTime)
//package com.java2s; /*/*from w ww . j av a 2s . c o m*/ * Copyright 20011-2012 the original author or authors. * * 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. */ import java.text.DecimalFormat; public class Main { static final DecimalFormat NUMBER_FORMAT = new DecimalFormat("##.####"); public static String getDiffTime(long startTime) { return NUMBER_FORMAT.format((System.nanoTime() - startTime) * 0.000001) + " ms"; } }