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VB.Net program to demonstrate the NullReferenceException

'Vb.Net program to demonstrate the NullReferenceException.

Module Module1
    Class Sample
        Public Sub SayHello()
            Console.WriteLine("Hello World")
        End Sub
    End Class

    Sub Main()
        Try
            Dim S As New Sample()

            S = Nothing
            S.SayHello()
        Catch e As NullReferenceException
            Console.WriteLine(e.Message)
        End Try
    End Sub
End Module

Object reference not set to an instance of an object.
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