How 2 use Progress Monitor.. when u dont know hw long process takes place!

Question

hello frnds,
I am trying to use ProgressMonitor.. to show user that required process is taking place.. so wait for a while!!
what before i was doing is to miimize the frame for that time and popping it again.. :-).. was really silly of me..
setExtendedState(JFrame.ICONIFIED);
NewProject();                      // This function takes time..
setExtendedState(JFrame.NORMAL);I was wondering that cant I use progressmonitor for that time.. but I dont know how long that function runs.. so may be now I have to use separate thread for it..
well even word THREAD haunts me.. so much.. .. never tried in my code.. If you people helps me how to put thread.. in my code..
so that I can show dialog ProgressMonitor for that time.. I would be grateful.. even i dont know whther thread is really necessary for what am trying to do.. !!
Thanking in advance!!
gervini

Answer 1

see if this makes any sense
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class Testing extends JFrame
  ProgressMonitor pmon = null;
  public Testing()
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    setSize(200,100);
    setLocation(200,100);
    JPanel panel = new JPanel();
    JButton btn = new JButton("Run");
    btn.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent ae){
        pmon = new ProgressMonitor(null, "","",0, 100);
        new Thread(new LongTask(pmon)).start();}});
    panel.add(btn);
    getContentPane().add(panel);
public static void main(String[] args){new Testing().setVisible(true);}
class LongTask implements Runnable
  int percentDone = 0;
  ProgressMonitor pm;
  public LongTask(ProgressMonitor p){pm = p;}
  public void run()
    someMethod();
  public void someMethod()
    for(int x = 0; x < 100000000; x++)
      if(x % 1000000 == 0)
        percentDone++;
        pm.setProgress(percentDone);
        pm.setNote("Task is " + percentDone + "% complete");
        //try{Thread.sleep(200);}catch(InterruptedException ie){}//may need this on a fast pc
      if (pm.isCanceled()) return;
}