What is oops in ABAP?

What is oops in ABAP?

Object Oriented ABAP or OOABAP is the object-oriented extension of ABAP, which mainly focuses on the object rather than the code flow. An object-oriented approach enables programmers to think like they are working with real-life entities.

Is method overloading possible in ABAP?

ABAP doesn’t support Overloading. Only exception is the CONSTRUCTOR method. Since we can create CONSTRUCTOR method in each subclass, we can change the signature of this method.

How many types of classes are there in Oops ABAP?

In general there are two types of Objects: Instance Object and Static Object and as such there are two types of Classes: Instance class and Static Class. Specifically when it comes to visibility, Private class, Protected class and Public classes are the types of classes one can have.

What is the difference between ABAP and Ooabap?

OOABAP is used to develop BSP/PCUI applications and also anything involved object oriented like BADIs, SmartForms..etc. where as ABAP is used to develop traditional programs in R/3.

What is singleton class in SAP ABAP?

Definition of Singleton Class in ABAP: A class is said to be a singleton class if it can have the utmost one instance only. Following is a procedure to create a singleton class : Visibility of class should be private. Declare a private attribute with reference to the same class, in which it is being declared.

What is method overriding in ABAP?

Method Overriding Method overriding is creating a method in the derived class that has the same name arguments as in the superclass. This new method hides the superclass method.

What is the difference between Singleton and static class in SAP ABAP?

A Singleton class is a class which can have at the most one instance. A Static Class, on the other hand, contains only static methods and attributes and therefore does not require instantiation.

What is singleton class in ABAP?

What is casting in ABAP?

Casting refers to the process of handling a data object by assuming a certain data type. This definition is different to the meaning of the concept in other programming languages, such as Java. Here, casting means a different concept which is referred to as ‘conversion’ in ABAP.

What is Badi in SAP ABAP?

BADI (Business Add-In) is a new SAP Object Oriented enhancement technique which is used to add our own business functionality to the existing SAP standard functionality. BADI’s are available in SAP R/3 from the system release 4.6c.

Can a private class be inherited?

Members of a class that are declared private are not inherited by subclasses of that class. Only members of a class that are declared protected or public are inherited by subclasses declared in a package other than the one in which the class is declared. The answer is No. They do not.