public void execute()
    {
        switch(selectedItem)
        {
            case 1:
                marioWorld.newGame();//reset
                marioWorld.setWhatcha(Doing.SELECTSTAGE);
                break;
            case 2:
                MarioData marioData = loadAndSave.load();
                marioWorld.setMarioData(marioData);
                marioWorld.setWhatcha(Doing.SELECTSTAGE);
                break;
            case 3:
                marioWorld.setWhatcha(Doing.EXIT);
                break;
        }
    }