Overriding in VB.NET

This article shows OVERRIDING in VB.NET.
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This article shows the OVERRIDING in VB.NET.

OVERRIDING: Overrides is used by derived classes (classes that inherit from a base class) to replace the original method from the base class with one of its own, which must match the same method signature.

For overriding, the methods must be OVERRIDABLE

 
VB Code:

 

Module module1

    Class A

        Public Overridable Sub Show()

            Console.WriteLine("Calling from A")

        End Sub

    End Class

 

 

    Class B

        Inherits A

        Public Overrides Sub Show()

            Console.WriteLine("Calling from B")

        End Sub

    End Class

 

    Class C

        Inherits B

        Public overloads Sub Show()

            Console.WriteLine("Calling from C")

        End Sub

 

    End Class

 

    Class Test

        Public Shared Sub Main()

            Dim x As A

            x = New A()

            x.Show()

            x = New B()

            x.Show()

            x = New C()

            x.Show()

        End Sub

    End Class

End Module

 

OUTPUT:

 

The output shows the result of the above VB.NET code.
 

overriding.gif

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