Membuat Video Player sederhana, pada JAVA (J2ME)

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.media.*;
import javax.microedition.media.control.VideoControl;
import java.io.InputStream;

public class VideoPlayer extends MIDlet
  implements CommandListener, Runnable, PlayerListener {
   
  private Display display;
  private Form form;
  private Thread thread;

  private Player player;
  private VideoControl videocontrol;

  private final Command cmdKeluar =
    new Command("Keluar", Command.EXIT, 1);
  private final Command cmdMainkan =
    new Command("Mainkan", Command.SCREEN, 1);
  private final Command cmdBerhenti =
    new Command("Berhenti", Command.OK, 1);
 
  public VideoPlayer() {
    display = Display.getDisplay(this);
  }
   
  public void startApp() {
    form = new Form("Video Player");
    form.addCommand(cmdKeluar);
    form.addCommand(cmdMainkan);
    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();
    } else if (c == cmdMainkan) {
      form.deleteAll();
      thread = new Thread(this);
      thread.start();
      form.removeCommand(cmdMainkan);
      form.removeCommand(cmdKeluar);
      form.addCommand(cmdBerhenti);
    } else if (c == cmdBerhenti) {
      try {
        player.stop();
        stopVideo();
      } catch (MediaException me) {
          me.printStackTrace();
      }
    }
  }          
 
  public void run() {
    try {
      InputStream is =
        getClass().getResourceAsStream("Video.3gp");
      player = Manager.createPlayer(is, "video/3gpp");
      player.addPlayerListener(this);
      player.realize();
     
      // mendapatkan kontrol video
      videocontrol =
        (VideoControl) player.getControl("VideoControl");
     
      // mendapatkan GUI untuk memainkan video
      Item videoItem = (Item) videocontrol.initDisplayMode(
        VideoControl.USE_GUI_PRIMITIVE, null);
     
      // memasukkan item yang didapat ke dalam form
      form.append(videoItem);
     
      // menjalankan video
      player.start();
     
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
 
  public void stopVideo() {
    try {
      player.deallocate();
      player.close();
      player = null;
      thread = null;
      form.removeCommand(cmdBerhenti);
      form.addCommand(cmdMainkan);
      form.addCommand(cmdKeluar);
    } catch (Exception e) {
      e.printStackTrace(); 
    }
  }
 
  public void playerUpdate(Player player,
                           String event, Object data) {
    if (event.equals(STOPPED) ||
      event.equals(STOPPED_AT_TIME) ||
      event.equals(ERROR) ||
      event.equals(END_OF_MEDIA)) {     
      stopVideo();
    }
  }
 
}