///////    Click2.java    ///////
import java.applet.Applet;
import java.awt.Graphics;
import java.awt.event.*;

public class Click2 extends Applet
{  public void init()
   {  addMouseListener(new MouseHandler(this)); 
      showStatus("Click2: initialized");
   }

   public void start()
   {  if (msg == null )
          msg = "  Counting Ups and Downs";
      showStatus("Click2: started");
   }
// resizing browser window can show this msg
   public void stop()
   {  msg = "   See you later!";
      showStatus("Click2: stopped");
   }

    public void paint(Graphics g)
    {   g.drawRect(0, 0, getSize().width-1,
                         getSize().height-1);
        g.drawString(msg, 5, 30);
    }

    public void doDown()
    {   msg = "   Ups = " + u +
              "  and  Downs = " + ++d;
        repaint();
    }

    public void doUp()
    {   msg = "   Ups = " + ++u +
              "  and  Downs = " + d;
        repaint();
    }

    private int u=0, d=0;
    private String msg = null;
}


class MouseHandler extends MouseAdapter
{   MouseHandler(Click2 ap)
    {   app = ap;  }
      
    public void mousePressed(MouseEvent e)
    {  app.doDown();  }

    public void mouseReleased(MouseEvent e)
    {  app.doUp();  }

    private Click2 app;
}