Here you can find the source of getCenteredLocation(Component comp)
static int[] getCenteredLocation(Component comp)
//package com.java2s; /*//ww w. j av a 2 s . com * Lindenmayer * see AUTHORS for a list of contributors. * * 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.Component; import java.awt.Dimension; import java.awt.Toolkit; public class Main { static int[] getCenteredLocation(Component comp) { // Size of screen Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); // Calculate frame position int top = (screenSize.height - comp.getHeight()) / 2; int left = (screenSize.width - comp.getWidth()) / 2; return new int[] { left, top }; } }