How many methods are there in the externalizable interface?
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What do you mean by Realization?
What are the methods required to create changes in subclasses?
Explain about inheritance hierarchies?
Can I implement polymorphism using abstract class?
When will you use an interface and abstract class?
Difference Between Attribute and Association.
What is an USECASE? Why it is needed?
If there is a conflict between base class method definition and interface default method definition, which definition is picked?
What is difference between polymorphism and normalization?
Explain basic concepts of OOPS?
What do you mean by data hiding?
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Can you define OOP and principles of OOP?