SetText() is not working ....please help

Question

hello all,
i am really stuck at something silly in my program, my code is huge to post in here, so i will try to describe as much as i can.
well my problem is i have a class which listen to a socket, when some data has been changed, i want it to modify a JPanel in "another" class, which is the main class of my GUI, by changing the text in that panel.
i am using setText(Sting), but it doesnt work.
i tried to call a method from the listen class to the main and that method have a print statment and setText() call, i checked that the statment is being printed, "which tells me that the listen class is calling that method in the main class, but the text doesnt change.. i tried repaint, revalidate... please help ..
thx for ur time.

Answer 1

i am trying to give u the closest picture of my code:
public class SetTextTest extends JPanel{
     public JPanel updateHistory;
     private JButton updateHistoryButton;
public JLabel updateLabel;
     public String updateStatus = "Updates: ";
     String updatesList ="";
String updatesIds="", updatesTimes="";
     int numOfupdates = 0;
     public SetTextTest() {
          super(new BorderLayout());
          updateHistory = new JPanel();
          //Set up Updates History Panel
          updateHistory.setLayout(new BoxLayout(updateHistory,BoxLayout.Y_AXIS));//new BorderLayout());
          updateHistory.setMaximumSize(new Dimension(300,250));
          updateLabel = new JLabel(updateStatus + numOfupdates);
          updateHistoryButton = new JButton("Check Updates");
          updateHistoryButton.setPreferredSize(new Dimension(120,25));
          updateHistoryButton.addActionListener(new ActionListener(){
               public void actionPerformed(ActionEvent e){
                    //open a table
     updateHistory.add(updateLabel);
     updateHistory.add(updateHistoryButton);
     public void newUpdates(){
          numOfupdates++;
          java.awt.Toolkit.getDefaultToolkit().beep();
          System.out.println(updateStatus + numOfupdates);
          updateLabel.setText(updateStatus + numOfupdates);
}