Comment stopper un thread en cours d’exécution

Author:

 list, list, set, java, swing, awt, JPanel, JFrame, table
Download

 
import java.awt.*;
 import java.awt.event.*;
 import javax.swing.*;
 
/****
 * Le programme Stoppe un thread
 * en cours d'exécution
 ***/
 
 public class StopThread extends JFrame implements Runnable
  	{
      // Les Objets a animer
      private static final String[] listObjet =
          { "|", "/", "-", "\", "|", "/", "-", "\" };
 
       private volatile boolean stopRequested;
       private Thread monThread;
       private JTextField mascotte;
 
       public StopThread()
       	{
      mascotte = new JTextField();
      mascotte.setEditable(false);
      mascotte.setFont(new Font("Monospaced", Font.BOLD, 26));
      mascotte.setHorizontalAlignment(JTextField.CENTER);
 
      final JButton stop_anim = new JButton("Stopper l'animation");
      stop_anim.addActionListener(new ActionListener() {
 
              public void actionPerformed(ActionEvent e) {
 
                  stopper();
 
              }
 
          });
 
      JPanel pnl = new JPanel();
      pnl.setLayout(new GridLayout(0, 1, 2, 2));
      pnl.add(mascotte);
      pnl.add(stop_anim);
      setLayout(new FlowLayout(FlowLayout.CENTER));
      add(pnl);
      setTitle("Exemple de Thread");
      setSize(320, 200);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      setVisible(true);
  }
 
         //  Arrêter le thread
       private void stopper()
  {
         stopRequested = true;  
 
        if ( monThread != null )
         {
             monThread.interrupt();
          } 
 
  }
 
       public void run() {
 
      try {
 
          monThread = Thread.currentThread();
          stopRequested = false;
          int count = 0;
 
          while ( !stopRequested  )
          	{
 
              mascotte.setText(
 
                  listObjet[ count % listObjet.length ]);
 
              Thread.sleep(200);
 
              count++;
 
          }
 
      } catch ( InterruptedException x )
      {
 
           Thread.currentThread().interrupt();
      } finally {
 
          monThread = null;
 
      }
 
  }
 
       public static void main(String[] args)
       	{
 
      StopThread obj = new StopThread();
      Thread thr = new Thread(obj);
      thr.start();
  		}
 
   }