// HowToA.java provides a simple applet example

import java.applet.*;
import java.awt.event.*;
import java.awt.*;

public class HowToA extends Applet implements ActionListener {

  Label lab;
  Button btn;
  
  int n;

  public void init() {
  
    String c = getParameter("count");

    if (c != null)
      n = Integer.parseInt(c);
    else
      n = 3;

    lab = new Label("Countdown at " + n, Label.CENTER);
    btn = new Button("Click here to continue");

    btn.addActionListener(this); // no extra object used here
    
    setLayout(new BorderLayout());
    
    add(lab, "Center");
    add(btn, "South");
    
  }

  public void actionPerformed(ActionEvent e) {

    if (--n > 0) {
      lab.setText("Countdown at " + n);
    }
    else {
      lab.setText("Countdown finished; click button for 3 more");
      n = 4; // dirty little trick to cause next click to yield 3
    }

  }

}