Computer scienceProgramming languagesJavaCode organizationObject-oriented programmingClass hierarchiesBuilding class hierarchies

Referencing subclass objects

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You can always cast an object of a superclass to its subclass without any exceptions.

A superclass variable can refer to any subclass object derived from it.

We can access subclass specific members through the base class reference.

If class A is a superclass of class B and class C, a variable of B can refer an object of class C and vice versa (class B and class C don't inherit each other).

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