How many instances can be created for an abstract class?
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What is data encapsulation and what's its significance?
What is the main difference between overloading and overriding?
What is the difference between data hiding and implementation?
Every object has : state, behavior and identity - explain
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Which OOPS concept exposes only the necessary information to the calling functions?
Explain what is polymorphism?
What are sealed modifiers?
What is the use if instanceof keyword? And how do refer to a current instance of object?
Explain what a method is?
State some of the advantages of object oriented programming?
What do you mean by operator overloading?
What is the difference between class and interface?