Why use oops?
What is a constructor in class?
Can encapsulation be called as a security device?
What is the benefit of using inheritance?
What is bootstrap, extension and system class loader? Or can you explain primordial class loader?
What is @functionalinterface?
What is the difference between oop and sop?
Explain what is object oriented programming language?
What is difference between static and non-static fields of a class?
What is a static method? Why do we need static methods in java 8 interfaces?
What is the best tool for modeling and ORM framework
What is dynamic or run time polymorphism?
Suppose a class acts an Actor in the problem domain, how to represent it in the static model?