Here you can find the source of millisElapsedSince(long startNanoTime)
static long millisElapsedSince(long startNanoTime)
//package com.java2s; /******************************************************************************* * Copyright 2015 InfinitiesSoft Solutions Inc. * * 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/*from www.jav a2s. c om*/ * * 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.util.concurrent.TimeUnit; public class Main { /** * Returns the number of milliseconds since time given by startNanoTime, * which must have been previously returned from a call to * {@link System#nanoTime()}. */ static long millisElapsedSince(long startNanoTime) { return TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNanoTime); } }