Constructor methods ABAP Objects

Constructor methods are special method that are implicitly associated with every instance
of a class .They are implicitly defined by the system .Constructor methods are called
automatically whenever an object is created .However the constructor methods can be
explicitly defined by the programmer .

We can define the number of input parameters for the constructor .A point to note a constructor method cannot return any value. The name of the constructor method is implicitly defined by the system as “CONSTRUCTOR” and it
cannot be changed . To use a constructor method i.e to incorporate some features , we need
to explicitly define it in class definition part .There are two types of constructor method Static and instance constructor.

Code:


CLASS my_class DEFINITION.
PUBLIC SECTION.
METHODS CONSTRUCTOR. “ note constructor should be always declared in public.
ENDCLASS.

CLASS my_class IMPLEMENTATION.
METHODS CONSTRUCTOR.
write :/ ‘this is constructor method’.
ENDMETHOD.
ENDCLASS.