What is friends keyword?
What is an interface in ooabap?
What is a friend class?
What are the limitations of redefining a method?
What is a single-ton class?
What is narrow casting?
What is the visibility of component?
What is alias?
Is it mandatory to implement all methods of interface in the class which includes interface?
What is a class in ooabap?
What is a narrowing cast? How can you implement it?
What is a polymorphism in ooabap ?
What are an abstraction, encapsulation, and polymorphism?
What is the use of final class?
Can we instantiate abstract class in ooabap ?