Class Base
Public Function Message() As String
Message = "Hello, World from Base Class"
End Function
Public Overridable Function Message2() As String
Message2 = "Base Class Message 2"
End Function
Public Sub ShowMessages()
Console.WriteLine(MyClass.Message())
Console.WriteLine(MyClass.Message2())
End Sub
End Class
Class Derived
Inherits Base
Public Shadows Function Message() As String
Message = "Hi, from Derived Class"
End Function
Public Overrides Function Message2() As String
Message2 = "Derived Class Message 2"
End Function
End Class
Module Module1
Sub Main()
Dim BaseObj As New Base()
Dim DerivedObj As New Derived()
Console.WriteLine("Base object Message: " & BaseObj.Message())
Console.WriteLine("Derived object Message: " & DerivedObj.Message())
Dim MixedObj As Base = New Derived()
Console.WriteLine("Mixed message: " & MixedObj.Message())
Console.WriteLine("Base object Message2: " & BaseObj.Message2())
Console.WriteLine("Derived object Message2: " & DerivedObj.Message2())
Console.WriteLine("Mixed message2: " & MixedObj.Message2())
Console.WriteLine()
Console.WriteLine("Mixed using MyClass")
MixedObj.ShowMessages()
End Sub
End Module
Base object Message: Hello, World from Base Class
Derived object Message: Hi, from Derived Class
Mixed message: Hello, World from Base Class
Base object Message2: Base Class Message 2
Derived object Message2: Derived Class Message 2
Mixed message2: Derived Class Message 2
Mixed using MyClass
Hello, World from Base Class
Base Class Message 2