import javax.swing.*;
import java.awt.*;
public class Head extends JApplet implements Runnable{
   private JTextArea textArea = new JTextArea();
   private Thread thread = new Thread(this);

   public void init() {
      JScrollPane scrollPane = new JScrollPane(textArea);
      scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
      getContentPane().add(scrollPane, BorderLayout.CENTER);
      thread.start();
   }
   
   public void run(){
      int counter = 0;
      ThreadOne one = null;
      RunnableTwo two = null;
      boolean alive = true;
      while(alive){
	 try { thread.sleep(1000); } catch(InterruptedException ie) {}
	 switch (counter){
	 case 0:{
	    textArea.append("\nCreating and starting thread 1\n\n");
	    textArea.setCaretPosition(textArea.getText().length());
	    one = new ThreadOne(textArea);
	 }break;
	 case 5:{
	    textArea.append("\nCreating and starting thread 2\n\n");
	    textArea.setCaretPosition(textArea.getText().length());
	    two = new RunnableTwo(textArea);
	 }break;
	 case 10:{
	    two.pause();
	    textArea.append("\nPausing thread 2\n\n");
	    textArea.setCaretPosition(textArea.getText().length());
	 }break;
	 case 15:{
	    textArea.append("\nRestarting thread 2\n\n");
	    textArea.setCaretPosition(textArea.getText().length());
	    two.restart();
	 }break;
	 case 20:{
	    one.kill();
	    textArea.append("\nKilling thread 1\n\n");
	    textArea.setCaretPosition(textArea.getText().length());
	 }break;
	 case 25:{
	    two.kill();
	    textArea.append("\nKilling thread 2\n\n");
	    textArea.setCaretPosition(textArea.getText().length());
	    alive = false;
	 }
	 }
	 counter++;
      }
   }
}