import java.awt.*;import java.awt.event.*;import javax.swing.*;import javax.swing.event.*;import java.util.*;public class SplitPaneDemo2 extends JFrame                            implements ListSelectionListener {    private JLabel label;    public SplitPaneDemo2() {        super("SplitPaneDemo2");        //Create an instance of SplitPaneDemo        SplitPaneDemo splitPaneDemo = new SplitPaneDemo();        JSplitPane top = splitPaneDemo.getSplitPane();        splitPaneDemo.getImageList().addListSelectionListener(this);        //XXXX: Bug #4131528, borders on nested split panes accumulate.        //Workaround: Set the border on any split pane within        //another split pane to null. Components within nested split        //panes need to have their own border for this to work well.        top.setBorder(null);        //Create a regular old label        label = new JLabel("Click on an image name in the list.",                           JLabel.CENTER);        //Create a split pane and put "top" (a split pane)        //and JLabel instance in it.        JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT,                                              top, label);        splitPane.setOneTouchExpandable(true);        splitPane.setDividerLocation(180);        //Provide minimum sizes for the two components in the split pane        top.setMinimumSize(new Dimension(100, 50));        label.setMinimumSize(new Dimension(100, 30));        //Add the split pane to this frame        getContentPane().add(splitPane);    }    public void valueChanged(ListSelectionEvent e) {        if (e.getValueIsAdjusting())            return;        JList theList = (JList)e.getSource();        if (theList.isSelectionEmpty()) {            label.setText("Nothing selected.");        } else {            int index = theList.getSelectedIndex();            label.setText("Selected image number " + index);        }    }    /**     * 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);        JDialog.setDefaultLookAndFeelDecorated(true);        //Create and set up the window.        JFrame frame = new SplitPaneDemo2();        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        //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();            }        });    }}