FocusConceptsDemo.java Source code

Introduction

Here is the source code for FocusConceptsDemo.java

Source

/* From http://java.sun.com/docs/books/tutorial/index.html */
/*
 * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * -Redistribution of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 *
 * -Redistribution in binary form must reproduce the above copyright notice,
 *  this list of conditions and the following disclaimer in the documentation
 *  and/or other materials provided with the distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any kind. ALL
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
 * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
 * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
 * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
 * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
 * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
 * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 *
 * You acknowledge that this software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of any
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import java.awt.BorderLayout;
import java.awt.GridLayout;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.JTextField;

/*
 * FocusConceptsDemo.java is a 1.4 example that requires no other files.
 */
public class FocusConceptsDemo extends JPanel {

    static JFrame frame;

    JTextField t1, t2, t3, t4;

    JButton b1, b2, b3, b4;

    JTextArea text1;

    public FocusConceptsDemo() {
        super(new BorderLayout());

        b1 = new JButton("JButton");
        b2 = new JButton("JButton");
        b3 = new JButton("JButton");
        b4 = new JButton("JButton");
        JPanel buttonPanel = new JPanel(new GridLayout(1, 1));
        buttonPanel.add(b1);
        buttonPanel.add(b2);
        buttonPanel.add(b3);
        buttonPanel.add(b4);

        text1 = new JTextArea("JTextArea", 15, 40);
        JPanel textAreaPanel = new JPanel(new BorderLayout());
        textAreaPanel.add(text1, BorderLayout.CENTER);

        t1 = new JTextField("JTextField");
        t2 = new JTextField("JTextField");
        t3 = new JTextField("JTextField");
        t4 = new JTextField("JTextField");
        JPanel textFieldPanel = new JPanel(new GridLayout(1, 1));
        textFieldPanel.add(t1);
        textFieldPanel.add(t2);
        textFieldPanel.add(t3);
        textFieldPanel.add(t4);

        add(buttonPanel, BorderLayout.PAGE_START);
        add(textAreaPanel, BorderLayout.CENTER);
        add(textFieldPanel, BorderLayout.PAGE_END);
        setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
    }

    /**
     * Create the GUI and show it. For thread safety, this method should be
     * invoked from the event-dispatching thread.
     */
    private static void createAndShowGUI() {
        //Make sure we have nice window decorations.
        JFrame.setDefaultLookAndFeelDecorated(true);

        //Create and set up the window.
        frame = new JFrame("FocusConceptsDemo");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        //Create and set up the content pane.
        JComponent newContentPane = new FocusConceptsDemo();
        newContentPane.setOpaque(true); //content panes must be opaque
        frame.setContentPane(newContentPane);

        //Display the window.
        frame.pack();
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}