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Class Declaration :

CLASS DEFINITION .

PUBLIC SECTION.

DATA : TYPE VALUE ''.

METHODS : . "method declarationPROTECTED SECTION.

DATA : TYPE VALUE ''.

METHODS : . "method declaration

PRIVATE SECTION.

DATA : TYPE VALUE ''.

METHODS : . "method declaration

ENDCLASS.

Class Definition/Implementation :CLASS IMPLEMENTATION.

METHOD : . "method definition"write statements , member data access e.t.c,....

ENDMETHOD.

ENDCLASS.

Object Creation And Data Accessing :

START-OF-SELECTION. "object declaration usually in start-of-selection

DATA : TYPE REF TO .

CREATE OBJECT : .

CALL METHOD : -> . "calling methods usingobjects.

-> "CALLING MEMBER DATA

Inheritance (parent -----> child) :CLASS DEFINITION INHERITING FROM < parent class name>.

PUBLIC SECTION.

DATA : TYPE VALUE ''.

METHODS : . "method declaration

PROTECTED SECTION.

DATA : TYPE VALUE ''.

METHODS : . "method declaration

PRIVATE SECTION.

DATA : TYPE VALUE ''.

METHODS : . "method declaration

ENDCLASS.

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Global Definitions :

TYPES : BEGIN OF ,

DATA : TYPE , type , GLOBAL AREA

END OF TYP_TAB . THIS DATA CAN BE USED INCLASS DEFINITION,IMPLEMENTATION

DATA : TYPE .

CLASS c1 DEFINITION .public section.methods : .

DATA : TYPE type standard table of , like line of .

ENDCLASS.

CLASS c1 IMPLEMENTATION.

method : ."append work area to internal table."looping internal table to work area.

endmethod.endclass.

One Class Object Creation In Another Class :

class definition.public section.

methods : .endclass.

class definition.public section.

methods : .endclass.

class implementation.method :.endmethod.

endclass.

class class2 implementation.

method : .data : type ref to .create object obj1.call method obj1-> .

endmethod.endclass.start-of-selection.

data : type ref to .create object : .call method -> .

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If we want to give class definition later we use below statement :

CLASS DEFINITION DEFERRED.

CLASS DEFINITION.

PUBLIC SECTION.DATA TYPE REF TO .

ENDCLASS.

CLASS C2 DEFINITION.

ENDCLASS.

start-of-selection.data : type ref to .CREATE OBJECT .

create object -> .

Put Non-Declarative Statements In Start Of Selection :

class definition.

endclass.

class implementation.

endclass.

Any statements after definition and implementation of class should be in

start-of-selection.

.....

..... "non declarative statements