Here you can find the source of sleep(long milli)
public static void sleep(long milli)
//package com.java2s; /*//from w w w.ja va 2s. c o m * Copyright 2010-2013 Institut Pasteur. * * This file is part of Icy. * * Icy is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Icy is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Icy. If not, see <http://www.gnu.org/licenses/>. */ public class Main { /** * Same as {@link Thread#sleep(long)} except Exception is caught and ignored. */ public static void sleep(long milli) { try { Thread.sleep(milli); } catch (InterruptedException e) { // have to interrupt the thread Thread.currentThread().interrupt(); } } /** * Same as {@link Thread#sleep(long)} except Exception is caught and ignored. */ public static void sleep(int milli) { try { Thread.sleep(milli); } catch (InterruptedException e) { // have to interrupt the thread Thread.currentThread().interrupt(); } } }