What are base class, sub class and super class?
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When do you prefer to use composition than aggregation?
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What is method overriding?
What are base class, sub class and super class?
Differentiate between an abstract class and an interface?
Explain colloboration
What is inheritance?
Why do we use oops concepts? What is its advantage?
Can an interface have an inner class?
Explain persistence?
What are the problems faced by the developer using object oriented programming language?
Define Initialisation Purpose.
What is data encapsulation and what is its significance?