¹ØÓÚJAVAµÄ

package com.deitel.advjhtp1.mvc.tree;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.tree.*;
public class PhilosophersJTree extends JFrame
{
private JTree tree;
private DefaultTreeModel philosophers;
private DefaultMutableTreeNode rootNode;
private String choose;
private int result;
public PhilosophersJTree()
{
super( "Favorite Philosophers" );
DefaultMutableTreeNode philosophersNode = getPhilosopherTree();
philosophers = new DefaultTreeModel( philosophersNode );
tree = new JTree( philosophers );
tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
tree.addTreeSelectionListener(new TreeSelectionListener()
{
        public void valueChanged(TreeSelectionEvent evt)
        {
TreePath[] paths = evt.getPaths();
for (int i=0; i <paths.length; i++)
{
if (evt.isAddedPath(i))
{
choose=new String(paths[i].toString());
break;
}
            }
            if(choose.equals("[ÂùݹÜÀíϵͳ, ¹Ë¿Í¹ÜÀí, Ìí¼Ó]"))
            i=0;