REPORT z14_08.
CLASS vehicle DEFINITION INHERITING FROM object.
PUBLIC SECTION.
METHODS: create,
drive.
PROTECTED SECTION.
DATA speed TYPE i VALUE '100'.
ENDCLASS. "vehicle DEFINITION
CLASS plane DEFINITION INHERITING FROM vehicle.
PUBLIC SECTION.
METHODS: fly.
ENDCLASS. "plane DEFINITION
* Class IMPLEMENTATION
CLASS vehicle IMPLEMENTATION.
METHOD create.
ENDMETHOD. "vehicle
METHOD drive.
speed = speed + 100.
WRITE : 'Driving is possible, ', 'Current:', speed.
ENDMETHOD. "vehicle
ENDCLASS. "vehicle IMPLEMENTATION
CLASS plane IMPLEMENTATION.
METHOD fly.
speed = speed + 1000.
ENDMETHOD.
ENDCLASS. "plane IMPLEMENTATION
DATA : car TYPE REF TO vehicle,
air TYPE REF TO plane.
START-OF-SELECTION.
CREATE OBJECT: car.
air ?= car.
CALL METHOD: air->drive.
CALL METHOD: air->fly.
댓글 2
-
쿨조운
2013.11.22 11:09
-
리얼오버
2024.03.01 08:50
소스코드 수정본
REPORT z14_08.
CLASS vehicle DEFINITION INHERITING FROM object.
PUBLIC SECTION.
METHODS: create,
drive.
PROTECTED SECTION.
DATA speed TYPE i VALUE '100'.
ENDCLASS. "vehicle DEFINITION
CLASS plane DEFINITION INHERITING FROM vehicle.
PUBLIC SECTION.
METHODS: fly.
ENDCLASS. "plane DEFINITION
* Class IMPLEMENTATION
CLASS vehicle IMPLEMENTATION.
METHOD create.
ENDMETHOD. "vehicle
METHOD drive.
speed = speed + 100.
WRITE : 'Driving is possible, ', 'Current:', speed.
ENDMETHOD. "vehicle
ENDCLASS. "vehicle IMPLEMENTATION
CLASS plane IMPLEMENTATION.
METHOD fly.
speed = speed + 1000.
ENDMETHOD.
ENDCLASS. "plane IMPLEMENTATION
DATA : car TYPE REF TO vehicle,
air TYPE REF TO plane.
START-OF-SELECTION.
CREATE OBJECT: car,
air TYPE plane. " 비행기 클래스의 인스턴스 생성
* air ?= car.
CALL METHOD: car->create. " 차량 생성
CALL METHOD: air->drive.
CALL METHOD: air->fly.
번호 | 제목 | 글쓴이 | 날짜 | 조회 수 |
---|---|---|---|---|
550 | REPORT z12_13.. | sapjoy | 2012.07.30 | 1010 |
549 | REPORT z12_11. | sapjoy | 2012.07.30 | 1012 |
» | REPORT z14_08. [2] | sapjoy | 2012.08.01 | 1012 |
547 | REPORT z16_06. | sapjoy | 2012.08.01 | 1012 |
546 | REPORT z12_15 | sapjoy | 2012.07.30 | 1014 |
545 | REPORT z14_14. | sapjoy | 2012.08.01 | 1015 |
544 | REPORT z14_15. | sapjoy | 2012.08.01 | 1018 |
543 | REPORT z15_18. | sapjoy | 2012.08.01 | 1018 |
542 | REPORT z17_04 . | sapjoy | 2012.08.01 | 1019 |
541 | REPORT z05_20. | sapjoy | 2012.07.30 | 1021 |
540 | REPORT z15_28. | sapjoy | 2012.08.01 | 1021 |
539 | REPORT z12_23. | sapjoy | 2012.07.30 | 1022 |
538 | PROGRAM z13_04. | sapjoy | 2012.08.01 | 1023 |
537 | REPORT z14_17. | sapjoy | 2012.08.01 | 1025 |
536 | REPORT z10_07. | sapjoy | 2012.07.30 | 1031 |
535 | REPORT z12_28. | sapjoy | 2012.07.30 | 1032 |
534 | REPORT z15_05. | sapjoy | 2012.08.01 | 1046 |
533 | REPORT z04_16. | sapjoy | 2012.07.30 | 1047 |
532 | REPORT z07_04. [1] | sapjoy | 2012.07.30 | 1058 |
531 | REPORT z07_01. | sapjoy | 2012.07.30 | 1059 |
에러가 나네요 casting에러요 air 객체와 car 객체를 casting 했는데 오류 납니다.