Here you can find the source of sleepForSeconds(long seconds)
public static void sleepForSeconds(long seconds)
//package com.java2s; /*// www . j av a 2 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 void sleepForSeconds(long seconds) { sleepForMillis(seconds * 1000); } public static void sleepForMillis(long millis) { sleepUntil(System.currentTimeMillis() + millis); } public static void sleepUntil(long timestamp) { long currentTime; while ((currentTime = System.currentTimeMillis()) < timestamp) { try { Thread.sleep(timestamp - currentTime); } catch (InterruptedException e) { } } } }