LIst Checkbox J2ME

//jad file (please verify the jar size)
/*
MIDlet-Name: ListCheckBox
MIDlet-Version: 1.0
MIDlet-Vendor: MyCompany
MIDlet-Jar-URL: ListCheckBox.jar
MIDlet-1: ListCheckBox, , ListCheckBox
MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-1.0
MIDlet-JAR-SIZE: 100

*/
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.AlertType;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.List;
import javax.microedition.midlet.MIDlet;

public class ListCheckBox extends MIDlet implements CommandListener {
  private Display display;

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

  private Command submit = new Command("Submit", Command.SCREEN, 2);

  private List list = new List("Select Media", List.MULTIPLE);

  public ListCheckBox() {
    display = Display.getDisplay(this);

    list.append("Books", null);
    list.append("Movies", null);
    list.append("Television", null);
    list.append("Radio", null);

    list.addCommand(exit);
    list.addCommand(submit);
    list.setCommandListener(this);
  }

  public void startApp() {
    display.setCurrent(list);
  }

  public void pauseApp() {
  }

  public void destroyApp(boolean unconditional) {
  }

  public void commandAction(Command command, Displayable Displayable) {
    if (command == submit) {
      boolean choice[] = new boolean[list.size()];
      StringBuffer message = new StringBuffer();
      list.getSelectedFlags(choice);
      for (int i = 0; i < choice.length; i++) {
        if (choice[i]) {
          message.append(list.getString(i));
          message.append(" ");
        }
      }
      Alert alert = new Alert("Choice", message.toString(), null, null);
      alert.setTimeout(Alert.FOREVER);
      alert.setType(AlertType.INFO);
      display.setCurrent(alert);
      list.removeCommand(submit);
    } else if (command == exit) {
      destroyApp(false);
      notifyDestroyed();
    }
  }
}

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