Virtual Method

What is a Virtual Method?

Definition and meaning of Virtual Method

A Digital Method is a declared Class approach that permits Overriding by way of a way with the equal Derived Class signature. Virtual techniques are equipment used to implement the Polymorphism Function of an Object-Oriented Language, which include C#. When a digital item Instance technique is invoked, the approach to be known as is determined based totally on the Object’s runtime kind, that's generally that of the maximum derived elegance.

What Does Virtual Method Mean?

A virtual technique is used to Override particular Base Class Implementation whilst a runtime object is of the derived type. Thus, digital methods facilitate the regular functionality of a associated object set.

An example of a virtual technique implementation is lessons Manager and Clerk, derived from the base elegance Employee with a CalculateSalary digital method, which may be overridden in derived lessons with the necessary common sense for the best kind. A listing of Employee kind items can be referred to as at runtime to calculate a salary – without knowing the precise implementation kind.

Virtual method implementation differs in Programming Languages like C , Java, C# and Visual Basic .NET. In Java, all non-Static techniques are digital via default, excluding methods which can be Personal or marked with the Keyword Final. C# requires the key-word virtual for digital methods, with the Exception of Private, static and summary methods, and the keyword override for overriding the derived elegance approach.

A natural virtual approach is a digital technique that mandates a derived class to put in force a method and does now not allow instantiation of the bottom magNiFicence, or Abstract Class.

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