Explain what an object is.
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What is a static method? Why do we need static methods in java 8 interfaces?
Why do we separate interface from implementation?
Explain about polymorphism?
Why does java not support multiple inheritance?
What's the order of call of constructors in inheritiance?
Comment: C++ "includes" behavior and java "imports"
What is the difference between class and interface?
What is the purpose of late binding in object-oriented programming?
Which OOPS concept exposes only the necessary information to the calling functions?
Explain the purpose of composition.
What is a subclass?
What is a nested interface?