Imports System

Public Module Module1

    Public Sub Main()

        test1

        test2

    End Sub

    Private Sub Test1

        console.writeline(nothing & "testing")

        console.WriteLine(cstr(nothing)&"cstr")

        console.writeline(nothing.tostring & "tostring")

​

​

    End Sub

    Private Sub Test2

        dim s as string = Nothing

        dim t as string = "Test"

        dim combined as string = CSTR(s) & t

        Console.WriteLine(combined)

    End Sub

End Module