How many instances can be created for an abstract class?
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What is sealed modifiers?
What is the use of finalize method?
Can we use static method definitions in interfaces?
What is difference between class and interface?
What is the difference between an Abstract class and Interface?
What is meant by overloading functions and operators?
What is virtual multiple inheritance?
Write about abstract base classes?
Explain what an object is.
Is @functionalinterface annotation mandatory to define a functional interface? What is the use of @functionalinterface annotation? Why do we need functional interfaces in java?
Give any criteria when you use an abstract class and an interface?
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What are the access modifiers?