Encapsulation and Abstraction – Oops Concepts | Java Tutorial For Beginners | Tech Game


Abstract classes and Abstract methods :

An abstract class is a class that is declared with abstract keyword.

An abstract method is a method that is declared without an implementation.

An abstract class may or may not have all abstract methods. Some of them can be concrete methods

A method defined abstract must always be redefined in the subclass,thus making overriding compulsory OR either make subclass itself abstract.

Any class that contains one or more abstract methods must also…

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