inheritance

Former Member — Sun, 24 Feb 2008 09:50:59 GMT

hi,

what is inheritancec, give an example of single level inheritance

Re: inheritance

Former Member — Sun, 24 Feb 2008 10:17:50 GMT

Hi,

Inheritence is nothing but Extracting features of base class in to derived class wihtout writing the code again..

Main purpose of this one is REUSABILITY of the code, once u write the code u can use any number of times..

REPORT .

CLASS counter DEFINITION.

PUBLIC SECTION.

METHODS: set IMPORTING value(set_value) TYPE i,

increment,

get EXPORTING value(get_value) TYPE i.

PROTECTED SECTION.

DATA count TYPE i.

ENDCLASS.

CLASS counter IMPLEMENTATION.

METHOD set.

count = set_value.

ENDMETHOD.

METHOD increment.

ADD 1 TO count.

ENDMETHOD.

METHOD get.

get_value = count.

ENDMETHOD.

ENDCLASS.

CLASS counter_ten DEFINITION INHERITING FROM counter.

PUBLIC SECTION.

METHODS increment REDEFINITION.

DATA count_ten(1) TYPE c.

ENDCLASS.

CLASS counter_ten IMPLEMENTATION.

METHOD increment.

DATA modulo TYPE i.

CALL METHOD super->increment.

WRITE / count.

modulo = count MOD 10.

IF modulo = 0.

count_ten = count_ten + 1.

WRITE count_ten.

ENDIF.

ENDMETHOD.

ENDCLASS.

DATA: count TYPE REF TO counter,

number TYPE i VALUE 5.

START-OF-SELECTION.

CREATE OBJECT count TYPE counter_ten.

CALL METHOD count->set EXPORTING set_value = number.

DO 20 TIMES.

CALL METHOD count->increment.

ENDDO.

Thanks and Regards,

Surya

Re: inheritance

Former Member — Sun, 24 Feb 2008 13:01:45 GMT

inheritence means one object gets the properties of another onject.

topic Re: inheritance in Application Development and Automation Discussions

inheritance

Re: inheritance

Re: inheritance