ddd

 package org.zhq;

import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.Panel;

import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;

public class Treetest {
 

 
 public Treetest(){
  Frame f=new Frame();
  JTree tree=new JTree();
  
  Object[] letters =  { " a ",  " b ",  " c ",  " d ",  " e " };
     JTree t2  =   new  JTree (letters);
    
    
     DefaultMutableTreeNode color  =   new  DefaultMutableTreeNode( " Color ",  true );
     DefaultMutableTreeNode gray  =   new  DefaultMutableTreeNode ( " Gray " );
     color.add (gray);
     color.add ( new  DefaultMutableTreeNode ( " Red " ));
     gray.add ( new  DefaultMutableTreeNode ( " Lightgray " ));
     gray.add ( new  DefaultMutableTreeNode ( " Darkgray " ));
     color.add ( new  DefaultMutableTreeNode ( " Green " ));
     JTree t5  =   new  JTree (color);

     DefaultMutableTreeNode QQfriend=new DefaultMutableTreeNode("QQ好友" );
 
     DefaultMutableTreeNode friend=new DefaultMutableTreeNode("我的好友" );
     DefaultMutableTreeNode stranger=new DefaultMutableTreeNode("陌生人" );
     DefaultMutableTreeNode lostname=new DefaultMutableTreeNode("黑名单" );
     QQfriend.add(friend);
     QQfriend.add(stranger);
     QQfriend.add(lostname);
    
     JTree t6=new JTree(QQfriend);
     
     Panel p=new Panel();
     p.setLayout(new BorderLayout());
    
     p.add(t2);
     p.add(t5);
     p.add(t6);
     f.add(p);
    
    
    
    
  
  f.pack();
  f.setSize(300,300);
  f.setVisible(true);
 }

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  new Treetest();

 }

}