How many methods do u implement if implement the serializable interface?
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How many methods are there in the externalizable interface?
Define exceptions?
How to define an abstract class?
What is data abstraction? what are the three levels of data abstraction with Example?
What is the difference between an Abstract class and Interface?
Can you think of some nice examples where *multiple* actors are associated with a use case ?
Which of the following is tightly bound ? Inheritance or composition ?
Explain the term constructor
What is single and multiple inheritance?
what are the main underlying concepts of object orientation?
Difference between composition and inheritance ?
Can you create an instance for an abstract class?