threading waiting to finish 1

[tictaclam]

Hi i'm new to threading and i'm having a difficult time. I have a main program and if a certain event occurs a new dialog pops up. I need the rest of the program to wait for the dialog to finish before it continues. Here's what i have started but it's not working and i'm not sure what to do.
myThread.java

 public class myThread extends Thread
{
 private myDialog new_reason_;

 public myThread()
 {
   new_reason_ = new myDialog();
 }

 public void run()
 {
   System.out.println("running");
   String reason = new_reason_.display();
   System.out.println("done");
 }

myDialog.java

public class myDialog extends JFrame 
{
  private JButton ok_;
  private JTextField reason_name_; 
  private Thread thread_;
  private Reason theReason_;

  public myDialog()
  { //set up dialog   }
  
  private void registerListeners()
  {
    ok_.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent e){
	theReason_.setReason("Test");
      }};
  }

  public String display()
  {
    theReason_= new Reason();
    this.setVisible(true);
    return theReason_.getReason();
  }

Reason.java

public class Reason 
{
  private String reason_;   
  
  public Reason()
  {
    reason_ = "";
  }

  public synchronized void setReason(String v)
  {
    synchronized (this) {			
      notify();
    }
    reason_ = v;
  }
	 
  public synchronized String getReason()
  {
   try{
     System.out.println("waiting...");
     wait();			
   }
   catch (InterruptedException e)
   {}
   System.out.println("done waiting..");
   return reason_;
  }
}

main.java

  ...
  myThread thread = new myThread();
  thread.start();
    	
  JOptionPane.showMessageDialog(null, "finished");
  ...

i don't want 'finished' to be displayed until the thread is done getting the reason Thanks

 

[sedj]

Use Thread.run() instead of Thread.start()

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[tictaclam]

Thanks that definitely made some sort of difference. But the problem now is that everything freezes and myDialog didn't finish loading first, so i can't hit 'ok' to reactivate the thread. Any ideas?

 

[tictaclam]

to restart the thread i need to have the user type in a name on the dialog and hit ok. I played with the code and i can make the dialog finish loading but it's frozen when the thread waits...is there some way i can make the rest of the program freeze but still allow this one dialog to be able to be used?

 

[stefanwagner]

move the JOptionPane.showMessageDialog(null, "finished"); to the end of the myThread.run () - method, and start again with 'start'.


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[Diancecht]

Maybe I'm wrong, but using the run method you don't do any class of multithreading, ¿right?

If that's true you can just avoid the Thread thingie

Cheers.

Dian