Not able to update a value in JLabel filed .. in second frame while clicking a button on first frame [closed]

I have two windows opened at the same time ,so now on clicking a Jbutton in first window frame My Jlabel value should get updated or change in second window frame…. My problem is I am using observer pattern in my case code is working pretty fine I am able to catch latest updated value but while updating the label giving settext its not getting updated

1] This is my function (called when temp value is changed and I click update button in first frame) .. This function I am using in Observable class —

public void updatetemp(int temp) {
    System.out.println("when temp is updated "+temp);
    this.temp = temp;
    setChanged(); // it says that we have changed somethoing so you need to notify observers
    System.out.println("uiyh");
    notifyObservers(temp); //notify
    System.out.println("notified");
}

2] Now it will notify the observer that there is change in temperature here , I am expecting that my
curTempLbl.setText(“” + curTempupd); in the code should update the changed value in the second frame … but it is not getting updated …
Note : If you see I have given system.out.println before and after setting the the jlabel I am able to catch the correct updated value … but itsnot getting updated in Jlabel please help

     public void update(Observable obj, Object arg1) {
    // TODO Auto-generated method stub
     if(arg1 instanceof Integer){

        int  curTempupd = ((Integer)arg1).intValue();

        System.out.println("inside update value --------"+curTempupd);

        WeatherTablePanel frame = new WeatherTablePanel(weatherDb);

        frame.setVisible(true);
        curTempLbl.setText("" + curTempupd);

        //curTempLbl.repaint();  

        System.out.println("after update value --------"+curTempupd);

    }

This is the code for frame Where I want my Jlabel to get uupdated

public WeatherTableFrame(WeatherDb weatherdb) {
  weatherTblUI = new WeatherTableUI(weatherdb);
  WindowListener exitListener = new FrameTerminator();
  addWindowListener(exitListener);
  setTitle("Weather Table");
  setSize(575,265); 
  add(weatherTblUI);
}

  // another class

      public WeatherTableUI(WeatherDb weatherDb) {
      weatherTblPanel = new WeatherTablePanel(weatherDb);
      addNewLocPanel = new AddNewLocPanel(weatherDb, weatherTblPanel);
      setLayout(new BorderLayout());
      add(weatherTblPanel, "Center");
      add(addNewLocPanel, "South");
      removeBtnPanel.add(removeLocBtn);
      add(removeBtnPanel, "East");
      removeLocBtn.addActionListener(this);
      }

3] inside weatherTblPanel I am trying to update the Jlabel value

I am using thread in my update function code but still its not getting updated please help

@Override
public void update(Observable obj, Object arg1) {
    // TODO Auto-generated method stub
    if(arg1 instanceof Integer){

        int  curTempupd = ((Integer)arg1).intValue();

        System.out.println("inside update value --------"+curTempupd);

    //  

        new Thread(){  
              public void run(){  
                try{Thread.sleep(2000);
                }catch(InterruptedException ie){ie.printStackTrace();}  
                SwingUtilities.invokeLater(new Runnable(){  
                  public void run(){  
                      curTempLbl.setText("" + 89); 
                  }  
                });  
              }  
            }.start();  

            //


        //setVisible(true);




                        //curTempLbl.repaint();             




        System.out.println("after update value --------"+curTempupd);

    }