برنامج جافا أرجوووووووووووووووووكم ساعدوني

[SORelena]

السلام عليكم ............كيفكم؟؟
عندي سؤال هذا برنامج جافا أبغى أعدل عليه و أستخدم كلاس
thread
ياااااليت أحد يساعدني

import 
java.util.*;
import 


javax.swing.*;
import 


java.awt.*;
import 


java.awt.event.*;
//------------------------------------------------------------------------------------------------
public class 


MyApp extends JFrame {
// Data
static boolean 


stopped = true; // Is the counting stopped? (True or False) --> shared variable
static 


JField number;
//------------------------------------------------------------------------------------------------
// Constructor
public 


MyApp()
{
// set the GUI
super


( "CAP 332 - Assignment 6: Learning Java Threads" );
// create the 2 buttons
// 1) The start button
JButton startButton = 


new JButton("Start");
startButton.addActionListener(

new StartButtonHandler());
startButton.setToolTip(

"Click here to start counting.");
// 2) The stop button
JButton stopButton = 


new JButton("Stop");
stopButton.addActionListener(

new StopButtonHandler());
stopButton.setToolTip(

"Click here to stop counting.");
// create the  field
number = 


new JTextField(20);
number.setEditable(


false);
number.set(

"0");
// create the panels
JPanel row1Panel = 


new JPanel();
JPanel row2Panel = 

new JPanel();
// create the first row
row1Panel.add(number);
// create the second row
row2Panel.setLayout(


new GridLayout(1,2)); // Grid layout with 1 row and 2 columns for the 2
buttons
row2Panel.add(startButton);
row2Panel.add(stopButton);
// create a split panel to include the 2 row panels
JSplitPane allPanel = 


new JSplitPane( JSplitPane.VERTICAL_SPLIT, row1Panel, row2Panel );
allPanel.setOneTouchExpandable( 


false );
allPanel.setDividerLocation( 50 );
// add this panel to the content pane
getContentPane().add(allPanel);
setSize(500,150);
setVisible( 


true );
}

// end constructor
//------------------------------------------------------------------------------------------------
// main method
public static void 


main (String[] args)
{
MyApp app = 

new MyApp ();
app.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
}

// end main
//------------------------------------------------------------------------------------------------
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// PRIVATE CLASSES
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
private class 


StartButtonHandler implements ActionListener{
public void 


actionPerformed(ActionEvent e)
{
stopped = 

false;
long 


counter = 1;
while 


(! stopped)
{
number.set(

""+counter);
counter ++;
}

// end while
}


// end method
}


// end class StartButtonHandler
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
private class 


StopButtonHandler implements ActionListener{
public void 


actionPerformed(ActionEvent e)
{
stopped = 

true;
}

// end method
}


// end class StopButtonHandler
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------} // end class