Clear and update JTable.

Question

Hi. this is a follow up from [Original Tread in "New To Java"|http://forums.sun.com/thread.jspa?messageID=10886612�]
Hope you can help me here. For you who dont read the link. This application is build only to lay up here. So the Layout aint pretty. It compiles and run tho. What i want and cant get to work is to reload table when i push my JTabbedPane.
Main Class
package test;
import javax.swing.*;
import javax.swing.event.*;
public class Main {
    public Main() {
        run();
    public void run(){
     frame();
    // clear and update JTable in class three
    public void clearThree() {
        Three t = new Three();
         t.clearVector();
    public JFrame frame() {
        JFrame frame = new JFrame();
        JTabbedPane tab = new JTabbedPane();
        tab.addTab("two",new Two());
        tab.addTab("three", new Three());
        tab.addChangeListener(new ChangeListener() {
            public void stateChanged(ChangeEvent e) {
                clearThree();// this dont work
        frame.add(tab);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(800,400);
         frame.setVisible(true);
         frame.pack();
        return frame;
    public static void main(String[] args) {
         java.awt.EventQueue.invokeLater(new Runnable() {
                     public void run(){
       new Main();
}// class two
package test;
import java.awt.event.*;
import java.util.Vector;
import javax.swing.*;
// class twoś only purpose is to  call clear() in class Three
public class Two extends JPanel{
public Two(){
toolBar();
  public void clearThree () {
   Three t = new Three();
   t.clearVector();
  public void toolBar(){
  JToolBar bar = new JToolBar();
  JButton button = new JButton("clear");
  button.addActionListener(new ActionListener (){
      public void actionPerformed(ActionEvent e){
      clearThree(); // this dont work
bar.add(button);
add(bar);
}// class three hold the table.
package test;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
public class Three extends JPanel{ 
        DefaultTableModel model;
        JTable table;
        Vector v = new Vector();
        Vector a = new Vector();
        Vector<Vector> r = new Vector<Vector>();
    public Three() {
        jBar();
        jTable();
    public void clearVector(){
        v.removeAllElements();
        a.removeAllElements();
        r.removeAllElements();
        model.fireTableDataChanged();
    public void jBar() {
        JToolBar bar = new JToolBar();
        JButton button =  new JButton("clear");
        button.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent e){
                clearVector();// this does work
        bar.add(button);
        add(bar);
    public JScrollPane jTable(){
        v.addElement("ID");
        v.addElement("Name");
        a.addElement("01");
        a.addElement("Magnus");
        r.add(a);
        model = new DefaultTableModel(r,v);
        table = new JTable(model);
         JScrollPane pane = new JScrollPane(table);
         add(pane);
         return pane;
}

Answer 1

Thank you for your replay, I have taken all of your tips and modifed my original application. but the problem is still there. This has been a very messy thread. and it is becouse i thougth it were a table/model problem. But it&#347; not. In the code below I have a JTextField. When i push the JTabbedPanes i want the setText(); to kick in. this compile and run.
// class One
package test;
import javax.swing.*;
import javax.swing.event.*;
public class Main {
    public Main() {
        run();
    public void run(){
     frame();
    public JFrame frame() {
        JTabbedPane tab = new JTabbedPane();
        final  Three t = new Three();
        JFrame frame = new JFrame();
        JPanel panel = new JPanel();
        tab.addTab("two",new Two());
        tab.addTab("three", new Three());
        tab.addChangeListener(new ChangeListener() {
            public void stateChanged(ChangeEvent e) {
                  t.setText(); // should call setText() in class Three.
        frame.add(panel);
        frame.add(tab);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(800,400);
         frame.setVisible(true);
         frame.pack();
        return frame;
    public static void main(String[] args) {
         java.awt.EventQueue.invokeLater(new Runnable() {
                     public void run(){
       new Main();
}class Two. Does nothing more then holding an empty tab
package test;
import javax.swing.*;
public class Two extends JPanel{
public Two(){
emptyPane();
  public void emptyPane () {
  JLabel  label = new JLabel("Just an empty JTabbedPane");
  add(label);
  }class Three
package test;
import javax.swing.*;
public class Three extends JPanel{ 
         JTextField text;
    public Three() {
        text();
    public void setText() {
        text.setText("Hello"); // this piece of code i want to insert in my JTextField
        validate();                // when i push the JTabbedPanes.
        repaint();
        updateUI();
    public JTextField text(){
         JToolBar bar = new JToolBar();
        text = new JTextField("",20);
        bar.add(text);
        add(bar);
        return text;
}