When an approach in the base class is labeled “virtual,” it means it can be overridden in the derived class. The derived class can then modify or enhance the operation of the inherited method. Method overriding is the technique of giving a distinct way to implement a method specified in the base class in the derived class. Hence, virtual functions can also be defined as the functions that are used to accomplish polymorphism in Java.Ī more extensive description of method overriding and how it applies to virtual functions in Java is an essential addition. Virtual functions are employed in achieving runtime polymorphism.All the non-static functions in Java are virtual functions.Static functions in Java also do not allow overriding and hence virtual functions are not static.Similarly, function final can also not be overridden and hence the virtual function is not the final.Private functions do not permit overriding and hence, the virtual functions are not private functions.An IS-A relationship is required for the virtual function in Java that is used to define the hierarchy of a class in inheritance.
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