Java tutorial
//package com.java2s; /* Holyoke Framework: library for GUI-based database applications This file Copyright (c) 2006-2008 by Robert Fischer 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 3 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, see <http://www.gnu.org/licenses/>. */ import java.awt.*; public class Main { /** Repositions a frame to be centered on the screen */ public static void center(Dialog frame) { Toolkit tk = Toolkit.getDefaultToolkit(); Dimension screen = tk.getScreenSize(); Dimension win = frame.getSize(); //frame.setSize(screenWidth / 2, screenHeight / 2); frame.setLocation((screen.width - win.width) / 2, (screen.height - win.height) / 2); } /** Repositions a frame to be centered on the screen */ public static void center(Frame frame) { Toolkit tk = Toolkit.getDefaultToolkit(); Dimension screen = tk.getScreenSize(); Dimension win = frame.getSize(); //frame.setSize(screenWidth / 2, screenHeight / 2); frame.setLocation((screen.width - win.width) / 2, (screen.height - win.height) / 2); } }