Define Data Abstraction. What is its importance?
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When do you prefer to use composition than aggregation?
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What is difference between polymorphism and normalization?
What is the need of multiple inheritance?
What are the properties that are defined in an object model?
What is the difference between class and interface?
Can you tell something about GDI objects?
What is the use of interface?
What is a default method? Why do we need default methods in java 8 interfaces?
How do we implement serialization actually?
Which keyword can be used for overloading?
Give any criteria when you use an abstract class and an interface?
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What is meant by inheritance? what are the advantages of inheritance?
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