Java tutorial
//package com.java2s; /** * * ==================================================================================================================================================== * "AppWork Utilities" License * The "AppWork Utilities" will be called [The Product] from now on. * ==================================================================================================================================================== * Copyright (c) 2009-2015, AppWork GmbH <e-mail@appwork.org> * Schwabacher Strae 117 * 90763 Frth * Germany * === Preamble === * This license establishes the terms under which the [The Product] Source Code & Binary files may be used, copied, modified, distributed, and/or redistributed. * The intent is that the AppWork GmbH is able to provide their utilities library for free to non-commercial projects whereas commercial usage is only permitted after obtaining a commercial license. * These terms apply to all files that have the [The Product] License header (IN the file), a <filename>.license or <filename>.info (like mylib.jar.info) file that contains a reference to this license. * * === 3rd Party Licences === * Some parts of the [The Product] use or reference 3rd party libraries and classes. These parts may have different licensing conditions. Please check the *.license and *.info files of included libraries * to ensure that they are compatible to your use-case. Further more, some *.java have their own license. In this case, they have their license terms in the java file header. * * === Definition: Commercial Usage === * If anybody or any organization is generating income (directly or indirectly) by using [The Product] or if there's any commercial interest or aspect in what you are doing, we consider this as a commercial usage. * If your use-case is neither strictly private nor strictly educational, it is commercial. If you are unsure whether your use-case is commercial or not, consider it as commercial or contact us. * === Dual Licensing === * === Commercial Usage === * If you want to use [The Product] in a commercial way (see definition above), you have to obtain a paid license from AppWork GmbH. * Contact AppWork for further details: <e-mail@appwork.org> * === Non-Commercial Usage === * If there is no commercial usage (see definition above), you may use [The Product] under the terms of the * "GNU Affero General Public License" (http://www.gnu.org/licenses/agpl-3.0.en.html). * * If the AGPL does not fit your needs, please contact us. We'll find a solution. * ==================================================================================================================================================== * ==================================================================================================================================================== */ import java.awt.Component; import java.awt.Point; import java.awt.Window; public class Main { /** * Calculates the position of a frame to be in the center of an other frame. * * @param parentFrame * @param frame * @return */ public static Point getCenter(final Component parentFrame, final Window frame) { final Point point = new Point(); int x = 0, y = 0; if (parentFrame == null || frame == null) { point.setLocation(x, y); return point; } x = parentFrame.getLocation().x + parentFrame.getSize().width / 2 - frame.getSize().width / 2; y = parentFrame.getLocation().y + parentFrame.getSize().height / 2 - frame.getSize().height / 2; point.setLocation(x, y); return point; } }