public void execute()
    {
       switch(selectedItem)
       {
            case 1:
                marioWorld.setWhatcha(Doing.PLAYING);
            break;
            case 2:
                loadAndSave.save();
                marioWorld.setWhatcha(Doing.SELECTSTAGE);
                break;
           case 3:
              marioWorld.setWhatcha(Doing.MAIN);
                break;
        }
    }