Here you can find the source of randomSleep()
public static final void randomSleep()
//package com.java2s; /*/*from www . j av a2 s .c o m*/ * Copyright 2013 S?ven Le Mesle * * 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. * */ public class Main { public static final void randomSleep() { try { // Emulate a service load Thread.sleep((long) Math.abs(Math.random() * 1000)); } catch (InterruptedException e) { e.printStackTrace(); } } }