Listing 4.1  Quelltext des Programms ZPTB00_ROOM_CHECKER
REPORT  zptb00_room_checker.
PARAMETERS:
  p_room TYPE zptb00_room_number OBLIGATORY 
  VALUE CHECK,
  p_chkin TYPE d OBLIGATORY,
  p_chkout TYPE d OBLIGATORY.
WRITE: / 'Room Reservation',
       / 'Hotel room number:', p_room,
       / 'Check in day     :', p_chkin,
       / 'Check out day    :', p_chkout.