/* * AbsoluteLayoutDemo.java is a 1.4 application that requires no other files. */import java.awt.Container;import java.awt.Insets;import java.awt.Dimension;import javax.swing.JButton;import javax.swing.JFrame;public class AbsoluteLayoutDemo {    public static void addComponentsToPane(Container pane) {        pane.setLayout(null);        JButton b1 = new JButton("one");        JButton b2 = new JButton("two");        JButton b3 = new JButton("three");        pane.add(b1);        pane.add(b2);        pane.add(b3);        Insets insets = pane.getInsets();        Dimension size = b1.getPreferredSize();        b1.setBounds(25 + insets.left, 5 + insets.top,                     size.width, size.height);        size = b2.getPreferredSize();        b2.setBounds(55 + insets.left, 40 + insets.top,                     size.width, size.height);        size = b3.getPreferredSize();        b3.setBounds(150 + insets.left, 15 + insets.top,                     size.width + 50, size.height + 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.        JFrame frame = new JFrame("AbsoluteLayoutDemo");        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        //Set up the content pane.        addComponentsToPane(frame.getContentPane());        //Size and display the window.        Insets insets = frame.getInsets();        frame.setSize(300 + insets.left + insets.right,                      125 + insets.top + insets.bottom);        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();            }        });    }}