What is meant by “abstract interface”?
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What's the benefit of using inheritance?
What is virtual?
Can encapsulation be called as a security device?
When will you use an interface and abstract class?
What are the various types of constructors?
What is the difference between multiple and multilevel inheritance?
Explain what you understand by function overloading.
How do you prevent a class from being inherited by another class?
What is the main use of message metaphor in object-oriented programming?
What is the purpose of late binding in object-oriented programming?
Can an interface implement or extend another interface?
What is a try/ catch block?