Java开发网 - 请问怎样才能把treepath的返回类型转换为srting型！！

Topic: 请问怎样才能把treepath的返回类型转换为srting型！！

1.请问怎样才能把treepath的返回类型转换为srting型！！

Posted by: wdhzj
Posted on: 2005-05-28 22:15

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
/*
<applet code="JTreeEvents" width=400 height=200>
</applet>
*/

public class JTreeEvents extends Japplet {
JTree tree;
JTextField jtf;

public void init() {

// Get content pane
Container contentPane = getContentPane();

// Set layout manager
contentPane.setLayout(new BorderLayout());

// Create top node of tree
DefaultMutableTreeNode top = new DefaultMutableTreeNode("Options");

// Create subtree of "A"
DefaultMutableTreeNode a = new DefaultMutableTreeNode("A");
top.add Angel

;
DefaultMutableTreeNode a1 = new DefaultMutableTreeNode("A1");
a.add(a1);
DefaultMutableTreeNode a2 = new DefaultMutableTreeNode("A2");
a.add(a2);

// Create subtree of "B"
DefaultMutableTreeNode b = new DefaultMutableTreeNode("B");
top.add Beer

;
DefaultMutableTreeNode b1 = new DefaultMutableTreeNode("B1");
b.add(b1);
DefaultMutableTreeNode b2 = new DefaultMutableTreeNode("B2");
b.add(b2);
DefaultMutableTreeNode b3 = new DefaultMutableTreeNode("B3");
b.add(b3);

// Create tree
tree = new JTree(top);

// Add tree to a scroll pane
int v = ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
int h = ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED;
JScrollPane jsp = new JScrollPane(tree, v, h);

// Add scroll pane to the content pane
contentPane.add(jsp, BorderLayout.CENTER);

// Add text field to applet
jtf = new JTextField("", 20);
contentPane.add(jtf, BorderLayout.SOUTH);

// Anonymous inner class to handle mouse clicks
tree.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent me) {
doMouseClicked(me);
}
});
}

void doMouseClicked(MouseEvent me) {
TreePath tp = tree.getPathForLocation(me.getX(), me.getY());
if(tp != null)
jtf.setText(tp.toString());
else
jtf.setText("");
}

请大家帮个忙我想得到treepath所指向的树结点的名字可不知怎么才能得到该节点的string型！还有就是知道改节点的父节点是什么就好了！要是有什么更简单的方法也忘能与兄弟共享！
感激不尽！！！