How many methods do u implement if implement the serializable interface?
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What is the difference between class and interface?
What is the default access specifier in a class definition?
What is an abstract property. Give an example?
What is data abstraction? what are the three levels of data abstraction with Example?
Explain what is meant by polymorphism?
What is bootstrap, extension and system class loader? Or can you explain primordial class loader?
Why use oops?
What are inner classes and what is the practical implementation of inner classes?
Explain persistence?
Why are virtual users created?
What is data encapsulation and what is its significance?
What are base class, sub class and super class?