How do i update a JTable with new data?

Question

Hey
I have a JTable where the data of some football players are shown. Name, club, matches and goals. What i want is to change the data in
the JTable when i click a button. For example each team in a league has its own button, so when i click the teams button, JTable has
data of that teams players.
Here is the code i have atm, there isnt anything on how to change the data, because i dont know where to start, plz point me in somekind of direction:
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package test;
import java.awt.*;
import java.awt.event.*;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JMenuBar;
import javax.swing.ImageIcon;
import javax.swing.JTable;
import javax.swing.JButton;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import javax.swing.JFrame;
* @author Jesper
public class Main extends JFrame implements ActionListener {
    private Players players;
    private JTextArea output;
    private JScrollPane scrollPane2;
    private JButton button1, button2;
    private String newline = "\n";
    private int club = 1;
    public Main(){
        players = new Players();
    public JMenuBar createMenuBar(){
        JMenuBar menuBar = new JMenuBar();
        JMenu menu = new JMenu("File");
        menu.setMnemonic(KeyEvent.VK_A);
        menu.getAccessibleContext().setAccessibleDescription("The only menu in this program that has menu items");
        menuBar.add(menu);
        // add menuitems/buttons
        JMenuItem menuItemNew   = new JMenuItem("new");
        menuItemNew.setActionCommand("1");
        menuItemNew.addActionListener(this);       
        JMenuItem menuItemOpen   = new JMenuItem("Open");
        JMenuItem menuItemQuit   = new JMenuItem("Quit");
        menuItemQuit.setActionCommand("2");
        menuItemQuit.addActionListener(this);
        // add to menu
        menu.add(menuItemNew);
        menu.add(menuItemOpen);
        menu.add(menuItemQuit);
        return menuBar;
    public void actionPerformed(ActionEvent e){
        String s;
        if ("Silkeborg IF".equals(e.getActionCommand())){
            club = 1;
            s = e.getActionCommand();
            output.append(s + newline);
            button1.setEnabled(false);
            button2.setEnabled(true);
        } else{
            club = 2;
            s = e.getActionCommand();
            output.append(s + newline);
            button1.setEnabled(true);
            button2.setEnabled(false);
    //Quit the application.
    protected void quit() {
        System.exit(0);
    public Container createContent(){
        JPanel contentPane = new JPanel(new GridLayout(3,1));
        ImageIcon icon = createImageIcon("middle.gif", "a pretty but meaningless splat");
        JTable table = new JTable(players.showPlayers(club));
        //Create the first label.
        button1 = new JButton("Silkeborg IF");
        button1.setToolTipText("Klik her for at se Silkeborg IF");
        button1.addActionListener(this);
        button1.setActionCommand("Silkeborg IF");
        //Create the second label.
        button2 = new JButton("FC Midtjylland");
        button2.setToolTipText("Klik her for at se FC Midtjylland");
        button2.addActionListener(this);
        button2.setActionCommand("FC Midtjylland");
        //Create a scrolled text area.
        output = new JTextArea(5, 30);
        output.setEditable(false);
        scrollPane2 = new JScrollPane(output);
        //Add stuff to contentPane.
        contentPane.add(button1);
        contentPane.add(button2);
        contentPane.add(table);
        contentPane.add(scrollPane2, BorderLayout.CENTER);
        return contentPane;
    protected static ImageIcon createImageIcon(String path,
                                               String description) {
        java.net.URL imgURL = Main.class.getResource(path);
        if (imgURL != null) {
            return new ImageIcon(imgURL, description);
        } else {
            System.err.println("Couldn't find file: " + path);
            return null;
    public static void createGUI(){
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        Main main = new Main();
        frame.setJMenuBar(main.createMenuBar());
        frame.setContentPane(main.createContent());
        frame.setSize(500, 500);
        frame.setVisible(true);
     * @param args the command line arguments
    public static void main(String[] args) {
        createGUI();
}

Answer 1

ooohh sorry... i posted the wrong code :S
Here is the correct code:
* To change this template, choose Tools | Templates
* and open the template in the editor.
package test;
import java.util.HashMap;
import java.util.Set;
import javax.swing.table.*;
* @author Jesper
public class Players {
    HashMap<Player, Stats> players;
    public Players(){
        players = new HashMap<Player, Stats>();
        addPlayer();
    public void addPlayer(){
        //Silkeborg IF
        players.put(new Player("Martin ?rnskov", 1), new Stats(19, 3, 1));
        players.put(new Player("Thomas Raun", 1), new Stats(23, 6, 0));
        players.put(new Player("Jimmy Mayasi", 1), new Stats(26, 26, 3));
        players.put(new Player("Lasse J?rgensen", 1), new Stats(33, 0, 0));
        //FC Midtjylland
        players.put(new Player("Frank Kristensen", 2), new Stats(19, 3, 1));
        players.put(new Player("Thomas R?ll", 2), new Stats(23, 6, 0));
        players.put(new Player("Simon Poulsen", 2), new Stats(26, 26, 3));
        players.put(new Player("Magnus Troels", 2), new Stats(33, 0, 0));
    public DefaultTableModel showPlayers(int club){
        String[] columNames = {"Spiller", "Klub", "Kampe", "M?l", "R?de kort"};
        //Object[][] data = {{"Martin ?rnskov", 19, 3, 1}, {"Thomas Raun", 23, 6, 0}};
        Set<Player> keys = players.keySet();
        Object[][] data = new Object[keys.size()][columNames.length];
        int i = 0;
        for(Player player : keys){
           if(player.getClub() == club){
               data[0] = player.getName();
data[i][1] = player.getClub();
data[i][2] = players.get(player).getMatches();
data[i][3] = players.get(player).getGoals();
data[i][4] = players.get(player).getRedCards();
i++;
DefaultTableModel table = new DefaultTableModel(data, columNames);
return table;