Java Programming

I'm having problems displaying an animated GIF while my thread is working. I started a new thread that opens and external program to process some data. While that is processing, I want to show an animated GIF on the GUI to show the user something is happening.

Here is my actionPerformed method that happens when the user clicks "submit".

public void actionPerformed(ActionEvent actionEvent){
              waiting.setText("Please wait a moment...");
              routeNum.setText("Route Num: " + (String)jBox.getSelectedItem());
              myDDAGPS.add(icon);
              myDDAGPS.update(myDDAGPS.getGraphics());
              int inputs = 1;
              boolean moreDevices = true;
              while(moreDevices) {
                  DataLoggerInterface dll = new DataLoggerInterface(inputs);
                  Thread t = new Thread(dll);
                  t.start();
                  try {
                      t.join();
                      waiting.setText("All done!");
                  } catch (InterruptedException ex) {
                      ex.printStackTrace();
                  }
                  String yesOrNo = JOptionPane.showInputDialog("Do you have any more devices to enter in? (y/n)");
                  if(yesOrNo.equalsIgnoreCase("n") || yesOrNo.equalsIgnoreCase("no")) {
                    moreDevices = false;
                  }
                  else {
                    JOptionPane.showMessageDialog(null, "Hit OK when you have the next device plugged in.");
                  }
                  inputs++;
                  myDDAGPS.remove(waiting);
                  myDDAGPS.remove(icon);
              }
        }

And here is my DataLoggerInterface class

public class DataLoggerInterface implements Runnable {
int inputs;
DataLoggerInterface(int inputs) {
    this.inputs = inputs;
}
    public void run() {
        Runtime rt = Runtime.getRuntime();
        Process p;
        try {
            p = rt.exec("C:/dda-gps/Temp/GPSBabel/gpsbabel.exe -w -t -i mtk -f com3 -o kml -F C:/dda-gps/Temp/input" + String.valueOf(inputs) + ".kml");
            p.waitFor();
            p.destroy();
        } catch (Exception ex) {
            ex.printStackTrace();
        }               
    }
}

Any help would be appreciated.
Thanks

Edited by: dmikester1 on Oct 17, 2008 11:59 AM