Let's comment the code previously typed !
↑↑↑↑
"class definition & implementation above
END-OF-SELECTION.
*DATA : lo_flight TYPE REF TO lcl_flight.
*
*CREATE OBJECT lo_flight
* EXPORTING iv_plane_number = '354'
* iv_company = 'SIA'.
*
*lo_flight->add_passengers( 10 ).
*lo_flight->take_off( ).
*
*DATA(lo_flight2) = lcl_flight=>add_flight(
* iv_plane_number = '9443'
* iv_company = 'AFR').
*
*lo_flight->add_passengers( 56 ).
*lcl_flight=>get_nb_flights( ).
*WRITE:/ lcl_flight=>get_nb_flights( ).
Now type this below it:
↑↑↑↑
"class definition & implementation above
END-OF-SELECTION.
DATA : lot_flight TYPE TABLE OF REF TO lcl_flight.
DATA(lo_flight) = lcl_flight=>add_flight(
iv_plane_number = '1234'
iv_company = 'SIA').
APPEND lo_flight TO lot_flight.
lo_flight = lcl_flight=>add_flight(
iv_plane_number = '9443'
iv_company = 'AFR').
APPEND lo_flight TO lot_flight.
lo_flight = lcl_flight=>add_flight(
iv_plane_number = '5434'
iv_company = 'LFH').
APPEND lo_flight TO lot_flight.
LOOP AT lot_flight INTO lo_flight.
DATA(lv_passengers) = sy-tabix * 35.
WRITE:/ lo_flight->get_free_seats( ).
lo_flight->add_passengers( lv_passengers ).
WRITE:/ lo_flight->get_free_seats( ).
lo_flight->take_off( ).
ENDLOOP.
💡 Compile (CTRL + F3)
Run the report (F8)
What is the number of passengers in flight 1 ? flight 2 ? flight 3 ?
What mecanism did you use to handle several instances ?
Why didn't you lose any instance with the garbage collector ?