Source: TheCount.java

Seen this before. The TextArea is defined by its rows (10) and columns/character spaces (20).

Typical while loop setup:

- initialize the counter

- test the counter

- increment the counter

Surprising how many people forget to increment the counter!

TheCount.java

import java.applet.Applet;
 import java.awt.*;
 import java.awt.event.*;
 /**
 * Runs an arbitrary loop, intro to while loops example
 *
 * @author Mr J
 * @version 020204
 */
 public class TheCount extends Applet implements ActionListener
 {
   // awt objects
   private TextArea display = new TextArea(10, 20);
   private Button pressMe = new Button("Press me!");
   private Label messages = new Label("Any messages will appear here");

 /**
   * Add objects to the Applet
   */
   public void init()
   {
     add(display);
     add(pressMe);
     add(messages);
     pressMe.addActionListener(this);
   }
   /**
   *
   * @param e carries details about the event that occurred
   */
   public void actionPerformed(ActionEvent e)
   {
     // run the loop
     int count = 0;
     messages.setText("I am The Count, I will count to 10!");
     while (count <= 10)
     {
       display.append("" + count + "\n");
       count = count + 1;
     }
   }
}

Related: [ Java Core | previous repetition | next:Hemper methods ]

Dedicated to the character from Sesame Street who helped my kids learn to count.

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