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Java Interview Questions

Q   |   QA

An abstract method is a method whose implementation is deferred to a subclass.

Basically Java doesn't allow multiple inheritance, so a Class is restricted to extend only one Class. But an Interface is a pure abstraction model and doesn't have inheritance hierarchy like classes(do remember that the base class of all classes is Object). So an Interface is allowed to extend more than one Interface.

Not possible. Doing so so will result in compilation error.

Yes it's possible.

Yes it's possible.

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