Menggunakan objek TextField pada JAVA (J2ME)

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class DemoTextField extends MIDlet
  implements CommandListener {
   
  private Display display;
  private Form form;
 
  private TextField nama, password, telp, email, URL;
 
  private final Command cmdKeluar =
    new Command("Keluar", Command.EXIT, 1);
   
  public DemoTextField() {
    display = Display.getDisplay(this);
  }
   
  public void startApp() {          
      
    form = new Form("Demo TextField");
       
    nama = new TextField("Nama:", null, 25, TextField.ANY);
    password = new TextField("Password:", null, 25,
                     TextField.PASSWORD);
    email = new TextField("Email:", null, 50,
                     TextField.EMAILADDR);
    URL = new TextField("URL:", null, 50, TextField.URL);
    telp = new TextField("Telepon:", null, 15,
                     TextField.PHONENUMBER);
   
    form.append(nama);
    form.append(password);
    form.append(email);
    form.append(URL);
    form.append(telp);
   
    form.addCommand(cmdKeluar);
    form.setCommandListener(this);
    
    display.setCurrent(form);
  }
   
  public void pauseApp() {
  }
   
  public void destroyApp(boolean unconditional) {
  }
   
  public void commandAction(Command c, Displayable s) {
    if (c == cmdKeluar) {
      destroyApp(false);
      notifyDestroyed();
    }
  } 
}