How to set Jtree Nodes' name into TextField??

Question

Dear Sir:
I have following code to select any file's name then put into TextField,
see:
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreePath;
public class JTreeSplitChooseDemo extends JPanel implements ActionListener{
    JFileChooser fc;
    JButton openButton, saveButton;
    JTextField jtf;
  public JTreeSplitChooseDemo() {
    final JTree tree;
    final JTextField jtf;
    JPanel jp= new JPanel();
    setPreferredSize(new Dimension(500,350));
    jp.setPreferredSize(new Dimension(500,300));
    DefaultMutableTreeNode top = new DefaultMutableTreeNode("Options");
    DefaultMutableTreeNode a = new DefaultMutableTreeNode("A");
    top.add(a);
    DefaultMutableTreeNode a1 = new DefaultMutableTreeNode("A1");
    a.add(a1);
    DefaultMutableTreeNode a2 = new DefaultMutableTreeNode("A2");
    a.add(a2);
    DefaultMutableTreeNode b = new DefaultMutableTreeNode("B");
    top.add(b);
    DefaultMutableTreeNode b1 = new DefaultMutableTreeNode("B1");
    b.add(b1);
    DefaultMutableTreeNode b2 = new DefaultMutableTreeNode("B2");
    b.add(b2);
    DefaultMutableTreeNode b3 = new DefaultMutableTreeNode("B3");
    b.add(b3);
    tree = new JTree(top);
    JScrollPane jsp = new JScrollPane(tree);
    jsp.setPreferredSize(new Dimension(500,300));
    tree.setPreferredSize(new Dimension(500,300));
    add(jsp, BorderLayout.CENTER);
    jtf = new JTextField("", 20);
    add(jtf, BorderLayout.SOUTH);
    tree.addMouseListener(new MouseAdapter() {
      public void mouseClicked(MouseEvent me) {
        TreePath tp = tree.getPathForLocation(me.getX(), me.getY());
        if (tp != null)
          jtf.setText(tp.toString());
        else
          jtf.setText("");
  public JPanel JTreeText() {
         JPanel jp= new JPanel();
         JPanel jpanel= new JPanel();
         setPreferredSize(new Dimension(400,350));
         jp.setPreferredSize(new Dimension(400,300));
         JScrollPane jsp = new JScrollPane(jp);
         jsp.setPreferredSize(new Dimension(400,300));
         jpanel.add(jsp, BorderLayout.CENTER);
         jtf = new JTextField("", 20);
         fc = new JFileChooser();
         openButton = new JButton("Open a File...",new ImageIcon("images/hui.gif"));
         openButton.addActionListener(this);
         JPanel buttonPanel = new JPanel(); //use FlowLayout
         buttonPanel.add(openButton);
         //jp.add(buttonPanel, BorderLayout.PAGE_START);
         jp.add(buttonPanel, BorderLayout.NORTH);
         jp.add(jtf, BorderLayout.CENTER);
         return jpanel;
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new JTreeSplitChooseDemo(), new BorderLayout().WEST);
    frame.getContentPane().add(new JTreeSplitChooseDemo().JTreeText(), new BorderLayout().CENTER);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(800, 350);
    frame.setVisible(true);
@Override
public void actionPerformed(ActionEvent e) {
     //Handle open button action.
    if (e.getSource() == openButton) {
      int returnVal = fc.showOpenDialog(JTreeSplitChooseDemo.this);
      if (returnVal == JFileChooser.APPROVE_OPTION) {
        File file = fc.getSelectedFile();
         jtf.setText(file.getName());
      } else {
         jtf.add("Open command cancelled by user.", null);
}For example, If i choose file : C:\temp\ftp\TestMyFile.txt
after I press open button, then choose it, then, the file name TestMyFile.txt will be displayed in the textFiled.
My problem is that I hope to choose any node in the JTree on the left Panel, then when I choose it, this JNode I selected will be displayed its name in the TextField.
Not file, I need choose JNode,
ie, B1 under B node, or A1 under A node, then B1 will be displayed in jtf.
How to do this one??
Can Guru throw some light??
Thanks
sunny

Answer 1

Thanks, camickr.
My fault not to explain detail.
Actually I mean that I will use a dialog box(very much look like a file choose) that is something like a file chooser then I can browse over JTree first for any node then I can choose or select a node in this JTree, after select this node, its name is populated into text field. My one is I will use a JTree browser (something like that) to get a tree node.
ie, this showOpenDialog will browse over JTree, not File system.
I did not want to click on the node then this node name is populated into textField.
the sample (http://java.sun.com/docs/books/tutorial/uiswing/components/tree.html) shows that when I select a node, then its name was populated to a destination.