Abstract classes and abstract methods in Java by Anand Mahajan, Mahajan Computers, Kurukshetra
abstract is one of the 49 keywords of java.
1) An abstract class is a class which can not be instantiated. This connotes we cannot declare/create/instantiate objects of an abstract class. But remember we can always declare reference variables of an abstract class. More often than not only a super class is declared as an abstract class.
2) an abstract method is declared in an abstract super class which is mandatory to be overridden by all it's sub classes.
Please watch the full video.
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