//ForDemo.java
//Demonstrates For loop, Prompt class
//Andy Harris, 05/00

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

public class ForDemo extends Applet implements ActionListener{

  Frame theFrame = new Frame("This is a frame");
  Prompt p = new Prompt(theFrame);
  
  Button btnForward = new Button("Count Forward");
  Button btnBackward = new Button("Count Backward");
  Button btnByFive = new Button("Count by Fives");
  Button btnCloseFrame = new Button("Close Frame");
  
  public void init(){
    theFrame.setLayout(new FlowLayout());
    theFrame.add(btnForward);
    theFrame.add(btnBackward);
    theFrame.add(btnByFive);
    theFrame.add(btnCloseFrame);

    theFrame.setVisible(true);
    theFrame.setSize(200,200);
    
    btnForward.addActionListener(this);
    btnBackward.addActionListener(this);
    btnByFive.addActionListener(this);
    btnCloseFrame.addActionListener(this);
  } // end init

  public void actionPerformed(ActionEvent e){
    if (e.getSource() == btnForward){
      //count forwards
      for (int i = 1; i <= 5; i++){
	p.say(String.valueOf(i));
      } // end for loop
      
    } else if (e.getSource() == btnBackward){
      //count backwards
      for (int i = 5; i > 0; i--){
	p.say(String.valueOf(i));
      } // end for loop
      
    } else if (e.getSource() == btnByFive){
      //count by fives
      for (int i = 5; i <= 25; i += 5){
	p.say(String.valueOf(i));
      } // end for loop

    } else {
      theFrame.setVisible(false);
      theFrame.dispose();
      
    } // end 'which button clicked' if
      
  } // end actionPerformed

} // end class def