Do you know what is the difference between an abstract class and an interface?
Answer / Ashutosh Kumar Pandey
An abstract class can contain implementation details, as well as abstract methods that must be implemented by derived classes. An interface only defines a contract that specifies what members should exist in a class, but does not provide any implementation. Multiple classes can implement the same interface, while a class can inherit from one abstract class.
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object is physical and class is logical..here class is not occupying any memory as our definition of class but i got a question then the class where it stores if it is not occupying any memory....
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