What are abstract classes?
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What is abstraction? How does it differ from encapsulation
What is the syntax of object oriented method call?
Difference: 'uses', 'extends', 'includes'
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What is a constructor in class?
Difference Between Attribute and Association.
How many methods are there in the serializable interface?
What is the difference between oop and sop?
How many methods are there in the externalizable interface?
What is inheritance?
Do we require parameter for constructors?
State about java and its relation to object oriented programming?
Which oops concept is used as reuse mechanism?