Answer Posted / amit jayaswal

Actually the fact is this that abstract class is used to achieve polymorphism (abstraction 0-100) & for code sharing among closely related concrete classes, there are no need to create and object of abstract class direct using "new" operator, because there are some abstract method & nothing to be allocated for abstract method they are here only for abstraction and there are some another non abstract method (for code sharing) and attribute inside abstract class and memory will be allocated for those members on the basis of their belonging concrete class. while we invoke constructor of their concrete class then the constructor of abstract class will be invoke implicitly.

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