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A MIDlet with simple text and a few commands

import javax.microedition.lcdui.Command; import javax.microedition.lcdui.CommandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.TextBox; import javax.microedition.midlet.MIDlet; public class FewCommandsMIDlet extends MIDlet implements CommandListener {   private Command exitCommand = new Command("A", Command.SCREEN, 1);   private Command infoCommand = new Command("B", Command.SCREEN, 2);   private Command aboutCommand = new Command("C", Command.SCREEN, 2);   private Display display;   public FewCommandsMIDlet() {     display = Display.getDisplay(this);   }   public void startApp() {     TextBox t = new TextBox("sdf", "Welcome to MIDP Programming", 256, 0);     t.addCommand(infoCommand);     t.addCommand(exitCommand);     t.addCommand(aboutCommand);     t.setCommandListener(this);     display.setCurrent(t);   }   public void pauseApp() {   }   public void destroyApp(boolean unconditional) {   }   public void commandAction(Command c, Displayable s) {     if (c == exitCommand) {       destroyApp(false);       notifyDestroyed();     }   } }