Here you can find the source of sleep(int i, String s)
protected static void sleep(int i, String s)
//package com.java2s; /* Copyright (C) 2004 - 2008 Versant Inc. http://www.db4o.com //from ww w. j a v a 2 s . c om This file is part of the db4o open source object database. db4o is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation and as clarified by db4objects' GPL interpretation policy, available at http://www.db4o.com/about/company/legalpolicies/gplinterpretation/ Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street, Suite 350, San Mateo, CA 94403, USA. db4o 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 this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ public class Main { protected static void sleep(int i, String s) { System.out.println(s); try { Thread.sleep(i * 1000); } catch (InterruptedException e) { throw new RuntimeException(e.getMessage()); } } }