JTable not working

Question

Hi,
Sorry to ask again about JTable but i can't understand what's wong.
The code above is well compiled but when running the computer frose without displaying the frame(not responding).
public class ex extends JFrame
  JTable table;
  JTable tab;
  public static void main(String[] args)
     new ex();
  public ex()
    Object[][] A=new Object[][]{{"1","2"},{"!","@"}};
    String[] Col=new String[]{"col1","col2"};
    JTable tab=new JTable(new MyTableModel(A,Col));
    JScrollPane tablePanel;
    table=tab;
    tablePanel=new JScrollPane(table);
    this.getContentPane().add(tablePanel);
     this.setSize(500,300);
    this.show();
class MyTableModel extends DefaultTableModel
  public MyTableModel(Object[][] cells, Object[] headers)
    super(cells, headers);
  public Class getColumnClass(int col)
    return getValueAt(0, col).getClass();
  public boolean isCellEditable(int row, int col)
     return false;
}Pls help.

Answer 1

Hi there,
Here is the code:
The getTable() is called from another class dealing the connection.
Also askApotelesmata() sends a message to the server, which call getTable and send him to the client.
Server:
class Apotelesmata
  static String[] Col;
  static Object[][] A;
  static int max=100;
  static int counter=0;
  public static void addApotelesma(Point p,ImageIcon e,ImageIcon a,boolean s)
    Col=new String[]{"������� ��������","��������","��������","�������� �����"};
    A=new Object[max][4];
    A[counter][0]=new String(p.x+"."+p.y);
    A[counter][1]=e;
    A[counter][2]=a;
    A[counter][3]=new Boolean(s);
    counter++;
  public static JTable getTable()
    JTable tab=new JTable(new MyTableModel(A,Col));
    return tab;
class MyTableModel extends DefaultTableModel
  public MyTableModel(Object[][] cells, Object[] headers)
    super(cells, headers);
  public Class getColumnClass(int col)
    return getValueAt(0, col).getClass();
  public boolean isCellEditable(int row, int col)
     return false;
}Client:
class StudentStats extends JFrame implements ActionListener
  StudentConnect sc;
  JTable table;
  JScrollPane tablePanel=new JScrollPane();
  public StudentStats(StudentConnect sctmp)
    try
      sc=sctmp;
      JButton load=new JButton("���� ������� ����������");
      JButton save=new JButton("���������� ������� ����������");
      load.addActionListener(this);
      save.addActionListener(this);
      JPanel panel=new JPanel();
      panel.setLayout(new GridLayout(1,2));
      panel.add(load);
      panel.add(save);
      sc.askApotelesmata();   
      table=(JTable)sc.in.readObject();
      tablePanel=new JScrollPane(table);
      this.getContentPane().setLayout(new GridLayout(2,1));
      this.getContentPane().add(tablePanel);
      this.getContentPane().add(panel);
      this.setSize(500,300);
      this.show(); 
   catch(IOException e)
      new AlertWin(e.toString());
   catch(ClassNotFoundException e)
     new AlertWin(e.toString());
   catch(Exception e)
     new AlertWin(e.toString());
  public void actionPerformed(ActionEvent e)
    String comand=e.getActionCommand();
    if (comand.equals("���� ������� ����������"))
      this.dispose();
      new StudentStats(sc);
    else if (comand.equals("���������� ������� ����������"))
       try
         ObjectOutputStream oos=new ObjectOutputStream(new FileOutputStream(new File(sc.studentName)));
         oos.writeObject(table);
       catch(IOException ee)
         new AlertWin(ee.toString());
}Here is the problem:
It is well compiled.
It is working fine when the table has only 1 row.
When the table has more than 1 row the client freezes.
Pls, i need some help.
Thanx in advance