Simple J2ME Application Code

PROGRAM:

import javax.microedition.midlet.*;

import javax.microedition.lcdui.*;

public class Text extends MIDlet implements CommandListener

{

            private Display display;

            private Form form;

            private Command submit;

            private Command exit;

            private TextField t;

            public Text()

            {

                        display=Display.getDisplay(this);

                        exit=new Command("exit",Command.EXIT,1);

                        submit=new Command("submit",Command.SCREEN,1);

                        form=new Form("SIGN IN");

                        t=new TextField("First Name:","",30,TextField.ANY);

                        form.addCommand(exit);

                        form.addCommand(submit);

                        form.append(t);

                        form.setCommandListener(this);

            }

            public void startApp()

            {

                        display.setCurrent(form);

            }

            public void pauseApp()

            {         

}

            public void destroyApp(boolean unconditional)

            {  

            }

            public void commandAction(Command command,Displayable displayable)

            {

                        if(command==submit)

                        {

                                    t.setString("Hello, "+t.getString()+",How r u?");

                                    form.removeCommand(submit);

                        }

                        else if(command==exit)

                        {

                                    destroyApp(false);

                                    notifyDestroyed();

                        } 

             } 

}