5. In the following code from the Billards project, what is the purpose of sendEmptyMessage? public void run() { try { while (true) { mBall.move(); Thread.sleep(DELAY); threadHandler.sendEmptyMessage(0); } } catch (InterruptedException e) {

5. In the following code from the Blllards project, what is the purpose of sendEmptyMessage? public void run() f try while (true) \{ mBall.move(); Thread.sleep(DELAY); threadHandler.sendEmptyMessage( 0 ); \} \} catch (InterruptedException e) \{ \}