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 |
---|---|---|---|---|
110 | REPORT z12_28. | sapjoy | 2012.07.30 | 1032 |
109 | REPORT z12_29. | sapjoy | 2012.07.30 | 910 |
108 | REPORT z12_30. | sapjoy | 2012.07.30 | 1160 |
107 | REPORT z12_31. | sapjoy | 2012.07.30 | 1312 |
106 | REPORT z12_32. | sapjoy | 2012.07.30 | 994 |
105 | report Z12_33 | sapjoy | 2012.07.30 | 1193 |
104 | PROGRAM z13_01. | sapjoy | 2012.08.01 | 1411 |
103 | PROGRAM z13_02. | sapjoy | 2012.08.01 | 1184 |
102 | PROGRAM z13_03. | sapjoy | 2012.08.01 | 1163 |
101 | PROGRAM z13_04. | sapjoy | 2012.08.01 | 1023 |
100 | PROGRAM z13_05. | sapjoy | 2012.08.01 | 1153 |
99 | REPORT Z14_01. | sapjoy | 2012.08.01 | 910 |
98 | REPORT Z14_02. | sapjoy | 2012.08.01 | 843 |
97 | REPORT z14_03. | sapjoy | 2012.08.01 | 872 |
96 | REPORT z14_04. | sapjoy | 2012.08.01 | 932 |
95 | REPORT z14_05. | sapjoy | 2012.08.01 | 858 |
94 | REPORT z14_06. [1] | sapjoy | 2012.08.01 | 1007 |
93 | REPORT z14_07. | sapjoy | 2012.08.01 | 818 |
» | REPORT z14_08. [2] | sapjoy | 2012.08.01 | 1012 |
91 | REPORT z14_09. | sapjoy | 2012.08.01 | 800 |
에러가 나네요 casting에러요 air 객체와 car 객체를 casting 했는데 오류 납니다.