What is Abstract classes in Java?

Hi,

In Java programming language we are used the Java Abstract class to declare some common characteristics of subclasses.This Abstract class cann't be instantiated (we cann't be create instances of an Abstract class). The main purpose of using Abstract class as to function as a base for subclasses. That's why the Abstract class in Java programming language is used to provide a template or design for concrete subclasses down the inheritance tree.

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