What is an abstraction and why is it important?
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What is the use if instanceof keyword? And how do refer to a current instance of object?
Can an interface inherit from another interface?
What is the difference between a class and a structure?
What are the four important foundation concepts of OOP ?
Explain the mechanism of composition?
Who is an Actor?
Explain about a class in oop?
Explain the meaning of object in object oriented programming?
Write a note about inheritance?
What is the diffrence between an abstract class and interface?
Why we use oops concepts? What is its advantage?
Why use oops?