Explain what is polymorphism?
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What is the practical implementation of inner classes?
What is a subclass?
What is the @functionalinterface annotation?
Can we override a method by using same method name and arguments but different return types?
What is @functionalinterface?
What if we make the method as abstract in another interface?
What is diamond inheritance problem? How java 8 solves this problem?
Write a note on encapsulation?
What is the diffrence between an abstract class and interface?
Can you create an instance of an interface?
How can we restrict inheritance for a class so that no class can be inherited from it?
What is the default access modifier in a class?