ABAP Abap Parametre Zorunlu Giriş

report zdenemeler.
SELECTION-SCREEN BEGIN OF SCREEN 100.
PARAMETERS : AD(15) TYPE C OBLIGATORY,
SOYAD(15) TYPE C,
TC(11) TYPE C.
SELECTION-SCREEN END OF SCREEN 100.
CALL SCREEN 100 STARTING AT 100 10.
WRITE : / AD,
/ SOYAD,
/ TC.