final Handler handler = new Handler() {                    public void handleMessage(Message msg) {                        switch (msg.what) {                        case 1:                            right2.setVisibility(View.INVISIBLE);                            InitializeQuestion();                            break;                        }                        super.handleMessage(msg);                    }                };                TimerTask task = new TimerTask() {                    public void run() {                        Message message = new Message();                        message.what = 1;                        handler.sendMessage(message);                    }                };                Timer timer = new Timer();                timer.schedule(task, 1500);