What is a functional interface? What is sam interface?
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What does the “abstract” keyword mean in front of a method? A class?
Is it possible to override private virtual methods?
Explain what is polymorphism?
Name the different creational patterns in object oriented design?
Explain persistence?
How many methods do u implement if implement the serializable interface?
what is meant by "method-wars"?
Can we override a method by using same method name and arguments but different return types?
Explain serialization and overriding?
What is super keyword?
Can we override static methods? Why?
What is ‘this’ pointer?