The lab saves the absolute end time so that:

  1. The timer runs twice as fast
  2. The app can be uninstalled
  3. The remaining time can be recomputed accurately after recreation
  4. The UI changes colour
Answer

C) The remaining time can be recomputed accurately after recreation

endTime − currentTime gives the true remaining time.

Computer Science MCQ · More Lab: Countdown Timer MCQs · Practise