Main.java Source code

Java tutorial

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2004 NNL Technology AB
 * Visit www.infonode.net for information about InfoNode(R) 
 * products and how to contact NNL Technology AB.
 *
 * 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., 59 Temple Place - Suite 330, Boston, 
 * MA 02111-1307, USA.
 */

import java.awt.Component;

import java.awt.KeyboardFocusManager;

public class Main {
    /**
     * Requests focus unless the component already has focus. For some weird
     * reason calling {@link Component#requestFocusInWindow()}when the
     * component is focus owner changes focus owner to another component!
     *
     * @param component the component to request focus for
     * @return true if the component has focus or probably will get focus,
     *         otherwise false
     */
    public static boolean requestFocus(Component component) {
        /*
         * System.out.println("Owner: " +
         * System.identityHashCode(KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner()) + ", " +
         * System.identityHashCode(component) + ", " +
         * (KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner() ==
         * component));
         */
        return KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner() == component
                || component.requestFocusInWindow();
    }
}