/**
 * @version 1.00 2002-06-30
 * @author Ismael Santos - baseado no livro CoreJava 2
 */
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;

public class SimpleTree {
  public static void main(String[] args) {
    JFrame frame = new SimpleTreeFrame();
    frame.show();
  }
}

class SimpleTreeFrame extends JFrame {
   public SimpleTreeFrame() {
      setTitle("SimpleTree");  setSize(300, 200);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      
      // set up tree model data
      // 1 - Subarvore Mundo - World
      DefaultMutableTreeNode root
         = new DefaultMutableTreeNode("World");
         
      // 1 - 1 - Subarvore Pais - USA
      DefaultMutableTreeNode country
         = new DefaultMutableTreeNode("USA");
      root.add(country);
      
      // 1 - 1 - 1 - Subarvore Estado - California
      DefaultMutableTreeNode state
         = new DefaultMutableTreeNode("California");
      country.add(state);
      DefaultMutableTreeNode city
         = new DefaultMutableTreeNode("San Jose");
      state.add(city);
      city = new DefaultMutableTreeNode("Cupertino");
      state.add(city);
      
      // 1 - 1 - 2 - Subarvore Estado - Michigan
      state = new DefaultMutableTreeNode("Michigan");
      country.add(state);
      city = new DefaultMutableTreeNode("Ann Arbor");
      state.add(city);
      
      // 1 - 2 - Subarvore Pais - Alemanha
      country = new DefaultMutableTreeNode("Germany");
      root.add(country);
      state = new DefaultMutableTreeNode("Schleswig-Holstein");
      country.add(state);
      city = new DefaultMutableTreeNode("Kiel");
      state.add(city);

      // construct tree and put it in a scroll pane
      JTree tree = new JTree(root);
      Container contentPane = getContentPane();
      contentPane.add(new JScrollPane(tree));
   }
}