In this article we will understand in detail about the ABAP Class visibility sections. In an ABAP class, you can have three visibility sections PUBLIC SECTION, PROTECTED SECTION, PRIVATE SECTION. There is no default visibility section. Hence, you must declare at least one of the three visibility section when defining ABAP Class. All components of […]

Inheritance is used to derive a new class from an existing class. New class is called child class, subclass or derived class. Existing class is called parent class or superclass. The subclass inherits all the components of the superclass defined under PUBLIC and PROTECTED section, but not under PRIVATE section. Subclass components can access the

Inheritance is an important concept of Object-Oriented programming. But, to really understand the importance of inheritance, you need to first understand the concept of Generalization and Specialization. Inheritance The general concept of Inheritance is : a class ( known as subclass ) inherits another class ( known as superclass ). In Inheritance, the subclass inherits

In object-oriented ABAP, the self-reference variable ME points to the instance in which the method is currently being executed. In other words, within an instance method, self-reference variable ME points to the object itself. The best way to understand this is with the help of below example: In the above code, the instance attribute and

Similar to instance constructor, static constructor is a special method called by the system runtime when the class is accessed for the first time during that program. How to define static constructor? Static constructor is basically a static method. To define a static constructor, In the ABAP Class definition, create a method with name CLASS_CONSTRUCTOR

Instance Constructor can be termed as a special method called the system runtime implicitly (automatically) as soon as an instance of the class is created. So, what is the use of Instance Constructor? A primary function of instance constructor is to initialize attributes when creating objects. How to create Instance Constructor? The instance constructor is