What is a subclass?
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What are the four phases of the Unified Process ?
Is it possible to provide method implementations in java interfaces? If possible, how do we provide them?
What is the difference between data hiding and implementation?
Describe the Diamond problem. Where does this problem occur?
What is an abstraction?
What is the benefit of Composition over Inheritance?
What are the four important foundation concepts of OOP ?
What is the difference between a class and a structure?
Can you create an instance of an abstract class?
What is the difference between a class and an object?
What is an abstraction and why is it important?
Is @functionalinterface annotation mandatory to define a functional interface? What is the use of @functionalinterface annotation? Why do we need functional interfaces in java?