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();

?}

}