import javax.swing.*;import javax.swing.border.*;import javax.accessibility.*;import java.awt.*;import java.awt.event.*;public class LayeredPaneDemo extends JFrame {    private String[] layerStrings = { "Yellow (0)", "Magenta (1)",                                       "Cyan (2)", "Red (3)",                                       "Green (4)" };    private Color[] layerColors = { Color.yellow, Color.magenta,                                     Color.cyan, Color.red,                                    Color.green };    private JLayeredPane layeredPane;    private JLabel dukeLabel;    public LayeredPaneDemo()    {        super("LayeredPaneDemo");        //Create and load the duke icon.        final ImageIcon icon = new ImageIcon("images/dukeWaveRed.gif");        //Create and set up the layered pane.        layeredPane = new JLayeredPane();        layeredPane.setPreferredSize(new Dimension(300, 310));        layeredPane.setBorder(BorderFactory.createTitledBorder(                                    "Move the Mouse to Move Duke"));        layeredPane.addMouseMotionListener(new MouseMotionAdapter() {            final int XFUDGE = 40;            final int YFUDGE = 57;            public void mouseEntered(MouseEvent e) {                dukeLabel.setLocation(e.getX()-XFUDGE, e.getY()-YFUDGE);            }            public void mouseMoved(MouseEvent e) {                dukeLabel.setLocation(e.getX()-XFUDGE, e.getY()-YFUDGE);            }        });        //This is the origin of the first label added.        Point origin = new Point(10, 20);        //This is the offset for computing the origin for the next label.        int offset = 35;        //Add several overlapping, colored labels to the layered pane        //using absolute positioning/sizing.        for (int i = 0; i < layerStrings.length; i++) {            JLabel label = createColoredLabel(layerStrings[i],                                              layerColors[i], origin);            layeredPane.add(label, new Integer(i));              origin.x += offset;            origin.y += offset;        }        //Create and add the Duke label to the layered pane.        dukeLabel = new JLabel(icon);        dukeLabel.setBounds(15, 225,                             icon.getIconWidth(),                            icon.getIconHeight());        layeredPane.add(dukeLabel, new Integer(2), 0);        //Add control pane and layered pane to frame.        Container contentPane = getContentPane();        contentPane.setLayout(new BoxLayout(contentPane,                                            BoxLayout.Y_AXIS));        contentPane.add(Box.createRigidArea(new Dimension(0, 10)));        contentPane.add(createControlPanel());        contentPane.add(Box.createRigidArea(new Dimension(0, 10)));        contentPane.add(layeredPane);    }    //Create and set up a colored label.    private JLabel createColoredLabel(String text,                                       Color color,                                      Point origin) {        JLabel label = new JLabel(text);        label.setVerticalAlignment(JLabel.TOP);        label.setHorizontalAlignment(JLabel.CENTER);        label.setOpaque(true);        label.setBackground(color);        label.setForeground(Color.black);        label.setBorder(BorderFactory.createLineBorder(Color.black));        label.setBounds(origin.x, origin.y, 140, 140);        return label;    }    //Create the control pane for the top of the frame.    private JPanel createControlPanel() {        final JCheckBox onTop = new JCheckBox("Top Position in Layer");        onTop.setSelected(true);        onTop.addActionListener(new ActionListener() {            public void actionPerformed(ActionEvent e) {                if (onTop.isSelected())                    layeredPane.moveToFront(dukeLabel);                else                    layeredPane.moveToBack(dukeLabel);            }        });        final JComboBox layerList = new JComboBox(layerStrings);        layerList.setSelectedIndex(2);    //Cyan layer        layerList.addActionListener(new ActionListener () {            public void actionPerformed(ActionEvent e) {                int position = onTop.isSelected() ? 0 : 1;                layeredPane.setLayer(dukeLabel,                                     layerList.getSelectedIndex(),                                     position);            }        });                JPanel controls = new JPanel();        controls.add(layerList);        controls.add(onTop);        controls.setBorder(BorderFactory.createTitledBorder(                                 "Choose Duke's Layer and Position"));        return controls;    }    public static void main(String[] args) {        JFrame frame = new LayeredPaneDemo();        frame.addWindowListener(new WindowAdapter() {            public void windowClosing(WindowEvent e) {                System.exit(0);            }        });        frame.pack();        frame.setVisible(true);    }}