Can a class in java be inherited from more than one class?

515

Can we have default method with same name and signature in the derived interface as the static method in base interface and vice versa?

555

What are the various types of constructors?

608

How many methods do u implement if implement the serializable interface?

538

Define exceptions?

529

What are the rules to define a functional interface?

531

What is the main use of message metaphor in object-oriented programming?

665

Can a function be overloaded based on return types?

536

How does abstraction differ from encapsulation.

565

What is static polymorphism?

685

Is @functionalinterface annotation mandatory to define a functional interface? What is the use of @functionalinterface annotation? Why do we need functional interfaces in java?

728

What is hybrid inheritance?

565

Does PowerShell support OOPs?

587

Name some languages which have object oriented language and characteristics?

562

Why are outlet connections required in object-oriented programming?

545