import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class ImageViewer extends  JFrame implements ListSelectionListener
{
    private String FILE[] = {"","",""};
    private DefaultListModel data = new DefaultListModel();
    private JList list = new JList(data);
    private JLabel image = null;
    private class windowCloser extends WindowAdapter
    {
        public void windowClosing()
        {
            System.exit(0);
        }
    }
    public ImageViewer()
    {
        super("Image Viewer");
        for(int i=0;i<FILE.length;i++)
            data.addElement("Image/"+FILE[i]);
        image = new JLabel(new ImageIcon(FILE[0]),SwingConstants.CENTER);
        list.setSelectedIndex(0);
        list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        JScrollPane scrollList = new JScrollPane(list);
        JScrollPane scrollImage = new JScrollPane(image);
        JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,scrollList,scrollImage);
        getContentPane().add("Center",splitPane);
        list.addListSelectionListener(this);
        addWindowListener(new windowCloser());
        validate();
        pack();
        setVisible(true);
    }
    public static void main(String[] args)
    {
        // TODO: Add your code here
        ImageViewer iv = new ImageViewer();
        
        String[] data = {"one", "two", "three", "four"};
         JList dataList = new JList(data);

         dataList.setSelectedIndex(1);  // select "two"
         dataList.getSelectedValue();   // returns "two"
 
    }
    public void valueChanged(ListSelectionEvent lse)
    {
        if(!lse.getValueIsAdjusting())
            image.setIcon(new ImageIcon(list.getSelectedValue().toString()));
    }    
}
程序可以运行，但是在显示图片时只能显示第一个图片，点击其他的都不能显示，为什么啊？

list.getSelectedValue().toString()))获得的字段是-----"Image/"+FILE[i]
然后可能你的图片没放到“Image”目录下吧~~~

谢谢，放到当前目录了，刚运行时显示第一个图片，当点击列表中其他的image选项时图片就不显示了！
问题是不是在  //list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
这行代码啊?