title: Is it possible to schedule notifications in Android?
body: <p>I am currently working on a program. The program should ask the use when he wants to be reminded of something during a specific day of the week (example, during Thursdays). Is this possible? Is it even possible to send notifications at a certain time of the day? 
  Of course, the program may be closed by the user, but will notifications still appear even after the user closes the app?</p>
  
  <p>How can I do these?
  Please, I really do need help on this one. </p>