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Language ABAP
(object-oriented version)
| Date: | 04/20/05 |
| Author: | Dominik Ritter |
| URL: | n/a |
| Comments: | 0 |
| Info: | n/a |
| Score: |  (2.50 in 8 votes) |
REPORT z_99_bottles_of_beer.
*&---------------------------------------------------------------------*
*& Author: Dominik Ritter *
*& Sprache: ABAP-Objects *
*& Version: SAP R/3 4.6c
*&---------------------------------------------------------------------*
CLASS shelf DEFINITION.
PUBLIC SECTION.
METHODS: constructor IMPORTING value(bottles) TYPE i,
take_bottles IMPORTING value(n) TYPE i,
bottles_left EXPORTING value(bottles) TYPE i.
PROTECTED SECTION.
DATA: no_bottles TYPE i.
ENDCLASS.
CLASS shelf IMPLEMENTATION.
METHOD constructor.
no_bottles = bottles.
ENDMETHOD.
METHOD take_bottles.
no_bottles = no_bottles - n.
ENDMETHOD.
METHOD bottles_left.
bottles = no_bottles.
ENDMETHOD.
ENDCLASS.
DATA: beer TYPE REF TO shelf.
DATA: bottlesonshelf TYPE i.
START-OF-SELECTION.
CREATE OBJECT: beer EXPORTING bottles = 99.
CALL METHOD beer->bottles_left IMPORTING bottles = bottlesonshelf.
WHILE bottlesonshelf GT 1.
WRITE:/(2) bottlesonshelf, ' bottles of beer on the wall, '.
WRITE:/(2) bottlesonshelf, ' bottles of beer.'.
WRITE:/ 'Take one down, pass it around, '.
CALL METHOD beer->take_bottles EXPORTING n = 1.
CALL METHOD beer->bottles_left IMPORTING bottles = bottlesonshelf.
WRITE:/(2) bottlesonshelf, ' bottles of beer on the wall.'.
SKIP.
ENDWHILE.
WRITE:/ '1 bottle of beer on the wall,'.
WRITE:/ '1 bottle of beer.'.
WRITE:/ 'Take one down, pass it around, '.
WRITE:/ 'no more bottles of beer on the wall.'.
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Alternative Versions
| Version | Author | Date | Comments | Rate |
|---|---|---|---|---|
| standard version | Dominik Ritter | 04/20/05 | 0 | |
| Use of Forms and Macros | David Lacorre | 11/19/08 | 1 | |
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