How to replace original JTree node with + and - sign or icon??

Question

Dear friends:
I have following code for JTree:
import java.awt.BorderLayout;
import java.awt.Container;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
public class TreeSample {
  public static void main(String args[]) {
    JFrame f = new JFrame("JTree Sample");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container content = f.getContentPane();
    JTree tree = new JTree();
    JScrollPane scrollPane = new JScrollPane(tree);
    content.add(scrollPane, BorderLayout.CENTER);
    f.setSize(300, 200);
    f.setVisible(true);
}Here, when I click any node to explore its children, right handle pointer become down handle Pointer, but if I hope to change this right handle pointer to + sign or icon; and to change this down handle pointer to - sign or icon; how to do it, ??
Is there any simplest way instead of using ImageIcon ????
Thanks
sunny

Answer 1

You have to use Windows look and feel instead of Java look and feel.
http://java.sun.com/docs/books/tutorial/uiswing/components/tree.html#display