Assigning object reference and creating objects in ABAP

As we know objects are runtime replica of classes ,they are real runtime entities of the
class, and come into picture during program execution. Objects occupy memory space .

An object cannot exist by itself it must have a class reference ,every object has the class
reference stored in a variable ,and we call it object name ,with the help of this reference we
can access the class components . Lets see how we can do it .

DATA: my_obj_ref TYPE REF TO ref_class_name.
The TYPE REF TO statement helps us to assign the object reference .
Objects can be created using CREATE OBJECT statement.
CREATE OBJECT: my_obj_ref.

Code:

 CLASS test DEFINITION.
PUBLIC SECTION.
METHODS test_method.
ENDCLASS.
CLASS test IMPLEMENTATION.
METHOD test_method.
WRITE:/ ‘this is my method’.
ENDMETHOD.
ENDCLASS.
*************** main program **************
START-OF-SELECTION.
DATA: obj_ref TYPE REF TO test. “ object reference is assigned
CREATE OBJECT: obj_ref. “ object is created
CALL METHOD Obj_ref->test_method. “object method is called using the reference.