Table sortin

hi, i have a football league system that allows data to be placed into a jtable, im having trouble sortin the table tho, does any1 know how 2 sort the data first by points then by goal differece n then by goals scored? thanx

first class:


// Game.java

// Java core packages
import javax.swing.JOptionPane;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

// Java exntension packages
import javax.swing.*;
import javax.swing.table.*;

// Beginning of class
public class Menu{
  private Object home;
  private Object away;
  private Object homeScore;
  private Object awayScore;
 
  LeagueTable league = new LeagueTable();
     
  // Array lists
     String mainmenus[] = {"Enter Result", "Display Results", "Display Table", "Exit"};
     String options[] = {"Arsenal", "Everton", "Watford", "Chelsea"};
     String goaloptions[] = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10"};
     
     JTextArea text = new JTextArea(6,100);
     JFrame frame = new JFrame("Football League Results List");
     
  // set up GUI
     public Menu()
     {
         results_list();
         boolean finish = false;  
         do{
             int mainmenu = JOptionPane.showOptionDialog(null, "Please Select An Option:", "Main Menu", 0, JOptionPane.PLAIN_MESSAGE, null, mainmenus, mainmenus [0]);
             if (mainmenu == 0)
             {
                 //Entering a result
                 home = JOptionPane.showInputDialog(null, "Enter Home Team", "Home Team", 0, null, options, options[0]);
                 homeScore = JOptionPane.showInputDialog(null, "Enter Home Goals", "Home Team", 0, null, goaloptions, goaloptions[0]);
                 away = JOptionPane.showInputDialog(null, "Enter Away Team", "Away Team", 0, null, options, options[0]);
                 awayScore = JOptionPane.showInputDialog(null, "Enter Away Goals", "Away Team", 0, null, goaloptions, goaloptions[0]);
                 
                 if (home != away){
                     league.insertleaguetable ( home,  homeScore,  away,  awayScore);
                     update();
                 }
                 else {JOptionPane.showMessageDialog(null, "Home team and away team can't be the same");}
             }
             
             if (mainmenu == 1)
             {
                 display();
             }
             
             if (mainmenu == 2)
             {
                 LeagueTable league = new LeagueTable();
             }
             
             if (mainmenu == 3)
             {
                 System.exit(0);
             }
         }
         while (finish == false);
     }
     
     public void results_list()
     {
         text.append("Home Team  Goals      Away Team  Goals\n");
     }
     
     public void update()
     {
         text.append(home.toString());
         text.append("               ");
         text.append(homeScore.toString());  
         text.append("           ");
         text.append(away.toString());
         text.append("             ");
         text.append(awayScore.toString());
         text.append("\n");
     }
     
     public void display()
     {
         frame.getContentPane().add(BorderLayout.CENTER, text);
         
         // Exit application when frame is closed
         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
         frame.setSize(350,500);
         frame.setVisible(true);
     }
     
     public static void main(String args[])
     {
         Menu menu = new Menu();
     }
}
//End of class



second class:



// LeagueTable.java

// Java core packages
import java.awt.*;
import java.awt.event.*;

// Java exntension packages
import javax.swing.*;
import javax.swing.table.*;

public class LeagueTable extends JFrame{
  //Constructs the JTable and displays automatically
 
  private DefaultTableModel footballTeams;
  private JTable table;
 
  // LeagueTable constructor
  public LeagueTable() {
      super("Football League Table");
      initTable();
     
      // create a JTable for footballTeams DefaultTableModel
      table = new JTable(footballTeams);
     
      // layout GUI components
      Container container = getContentPane();
      container.add(new JScrollPane(table), BorderLayout.CENTER);
     
      setSize(500,300);
      setDefaultCloseOperation(EXIT_ON_CLOSE);  
      setVisible(true);
  }
  // end of LeagueTable constructor
 
  private void initTable() {
     
      //TableSorter sorter = new TableSorter(aTableModel);
      //initTable.setModel(sorter);
      //sorter.addMouseListenerToHeaderInTable(initTable);
     
      //creates a DefaultTableModel to hold the footballTeams records
      footballTeams = new DefaultTableModel();
   
    // add columns to DefaultTableModel
    footballTeams.addColumn(" Name ");
    footballTeams.addColumn( "Played");
    footballTeams.addColumn("Won");
    footballTeams.addColumn("Drawn");
    footballTeams.addColumn("Lost");
    footballTeams.addColumn("For");
    footballTeams.addColumn("Against");
    footballTeams.addColumn("GD");
    footballTeams.addColumn("Pts");
   
    // add names and default data to DefaultTableModel
    String[] arsenal = { "Arsenal", "0", "0", "0", "0", "0", "0", "0", "0"};
    footballTeams.addRow(arsenal);
    String[] everton = { "Everton", "0", "0", "0", "0", "0", "0", "0", "0"};
    footballTeams.addRow(everton);
    String[] watford = { "Watford", "0", "0", "0", "0", "0", "0", "0", "0"};
    footballTeams.addRow(watford);
    String[] chelsea = { "Chelsea", "0", "0", "0", "0", "0", "0", "0", "0"};
    footballTeams.addRow(chelsea);
  }
 
  //Inserts data in to the table in the correct place
  public void insertleaguetable(Object home, Object homeScore, Object away, Object awayScore)
  {
      String homeTeam = home.toString();
      int homeGoals = Integer.parseInt(homeScore.toString());
      String awayTeam = away.toString();
      int awayGoals = Integer.parseInt(awayScore.toString());
      for(int i=0; i<4; i++){
         
      if (home == footballTeams.getValueAt(i, 0)){

          int played = Integer.parseInt(footballTeams.getValueAt(i, 1).toString());
          footballTeams.setValueAt(new Integer(played + 1), i, 1);
         
          int won = Integer.parseInt(footballTeams.getValueAt(i, 2).toString());
          int points = Integer.parseInt(footballTeams.getValueAt(i, 8).toString());
         
          int goalsFor = Integer.parseInt(footballTeams.getValueAt(i, 5).toString());
          footballTeams.setValueAt(new Integer(goalsFor + homeGoals), i, 5);
          int goalsAgainst = Integer.parseInt(footballTeams.getValueAt(i, 6).toString());
          footballTeams.setValueAt(new Integer(goalsAgainst + awayGoals), i, 6);
          int gD = Integer.parseInt(footballTeams.getValueAt(i, 7).toString());
          footballTeams.setValueAt(new Integer(gD + homeGoals - awayGoals), i, 7);
         
          if (homeGoals > awayGoals) {
          footballTeams.setValueAt(new Integer(won + 1), i, 2);
          footballTeams.setValueAt(new Integer(points + 3), i, 8);
          }
          int scoredraw = Integer.parseInt(footballTeams.getValueAt(i, 3).toString());
          if (homeGoals == awayGoals && homeGoals !=0 && awayGoals !=0) {
          footballTeams.setValueAt(new Integer(scoredraw + 1), i, 3);
          footballTeams.setValueAt(new Integer(points + 2), i, 8);
          }
          int draw = Integer.parseInt(footballTeams.getValueAt(i, 3).toString());
          if (homeGoals == awayGoals && homeGoals ==0 && awayGoals == 0) {
          footballTeams.setValueAt(new Integer(draw + 1), i, 3);
          footballTeams.setValueAt(new Integer(points + 1), i, 8);
          }
          int lost = Integer.parseInt(footballTeams.getValueAt(i, 4).toString());
          if (homeGoals < awayGoals) {
          footballTeams.setValueAt(new Integer(lost + 1), i, 4);
          }
      }
     
      if (away == footballTeams.getValueAt(i, 0)){
         
          int points = Integer.parseInt(footballTeams.getValueAt(i, 8).toString());
             
          int played = Integer.parseInt(footballTeams.getValueAt(i, 1).toString());
          footballTeams.setValueAt(new Integer(played + 1), i, 1);

          int goalsFor = Integer.parseInt(footballTeams.getValueAt(i, 5).toString());
          footballTeams.setValueAt(new Integer(goalsFor + awayGoals), i, 5);
          int goalsAgainst = Integer.parseInt(footballTeams.getValueAt(i, 6).toString());
          footballTeams.setValueAt(new Integer(goalsAgainst + homeGoals), i, 6);
          int gD = Integer.parseInt(footballTeams.getValueAt(i, 7).toString());
          footballTeams.setValueAt(new Integer(gD + awayGoals - homeGoals), i, 7);
         
          int won = Integer.parseInt(footballTeams.getValueAt(i, 2).toString());
          if (homeGoals < awayGoals) {
          footballTeams.setValueAt(new Integer(won + 1), i, 2);
          footballTeams.setValueAt(new Integer(points + 3), i, 8);
          }
       
          int scoredraw = Integer.parseInt(footballTeams.getValueAt(i, 3).toString());
          if (homeGoals == awayGoals && homeGoals !=0 && awayGoals !=0) {
          footballTeams.setValueAt(new Integer(scoredraw + 1), i, 3);
          footballTeams.setValueAt(new Integer(points + 2), i, 8);
         
   }
          int draw = Integer.parseInt(footballTeams.getValueAt(i, 3).toString());
          if (homeGoals == awayGoals && homeGoals ==0 && awayGoals == 0) {
          footballTeams.setValueAt(new Integer(draw + 1), i, 3);
          footballTeams.setValueAt(new Integer(points + 1), i, 8);
   }
          int lost = Integer.parseInt(footballTeams.getValueAt(i, 4).toString());
          if (homeGoals > awayGoals) {
          footballTeams.setValueAt(new Integer(lost + 1), i, 4);
          }
          }
      }
  }
}