Discussion of Activity 10.4 - Writing a MIDlet

The HelloWorld MIDlet from Unit 10 is as follows:

package helloworld;
 
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
 
public class HelloWorld extends MIDlet
{
   private TextBox textbox;
   private Display display;
   private static final int screenLength = 20;
 
   public HelloWorld()
   {
   }
   public void startApp()
   {
      textbox = new TextBox("First MIDlet", "Hello World",
         screenLength,TextField.ANY);
      display = Display.getDisplay(this); 
      display.setCurrent(textbox);
   }
   public void pauseApp()
   {
   }
   public void destroyApp(boolean b)
   {
   }
}