Java tutorial
//package com.java2s; /* * JMule - Java file sharing client * Copyright (C) 2007-2008 JMule team ( jmule@jmule.org / http://jmule.org ) * * Any parts of this program derived from other projects, or contributed * by third-party developers are copyrighted by their respective authors. * * This program 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 2 * of the License, or (at your option) any later version. * * This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * */ import java.awt.Dimension; import java.awt.Rectangle; import java.awt.Toolkit; import java.awt.Window; public class Main { public static void centerAndSizeWindow(Window win, int fraction, int base) { Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); int width = screenSize.width * fraction / base; int height = screenSize.height * fraction / base; Rectangle rect = new Rectangle((screenSize.width - width) / 2, (screenSize.height - height) / 2, width, height); win.setBounds(rect); } }