' Visual Basic 2008 9.0 .NET Examples - Method Overloading - Object Oriented Programming : 
Class Counter
    Protected m_Value As Integer
    Public Function GetValue() As Integer
        GetValue = m_Value
    End Function
    Public Sub Raise()
        m_Value += 1
    End Sub
    Public Sub Lower()
        m_Value -= 1
    End Sub
End Class
Class SpecialCounter : Inherits Counter
    Public Sub SetValue(ByVal value As Integer)
        m_Value = value
    End Sub
    Public Overloads Sub Raise(ByVal stapValue As Integer)
        m_Value += stapValue
    End Sub
    Public Overloads Sub Lower(ByVal stapValue As Integer)
        m_Value -= stapValue
    End Sub
End Class
Module ExerciseSolution
    Sub Main()
        Dim counter1 As Counter = New Counter
        Console.WriteLine(counter1.GetValue() = 0)
        counter1.Raise()
        Console.WriteLine(counter1.GetValue() = 1)
        counter1.Raise()
        Console.WriteLine(counter1.GetValue() = 2)
        counter1.Lower()
        Console.WriteLine(counter1.GetValue() = 1)
        counter1.Lower()
        Console.WriteLine(counter1.GetValue() = 0)
        '
        Dim specialCounter1 As SpecialCounter = New SpecialCounter
        Console.WriteLine(specialCounter1.GetValue() = 0)
        specialCounter1.SetValue(10)
        Console.WriteLine(specialCounter1.GetValue() = 10)
        specialCounter1.Raise()
        Console.WriteLine(specialCounter1.GetValue() = 11)
        specialCounter1.Raise()
        Console.WriteLine(specialCounter1.GetValue() = 12)
        specialCounter1.Lower()
        Console.WriteLine(specialCounter1.GetValue() = 11)
        specialCounter1.Lower()
        Console.WriteLine(specialCounter1.GetValue() = 10)
        specialCounter1.Raise(5)
        Console.WriteLine(specialCounter1.GetValue() = 15)
        specialCounter1.Lower(8)
        Console.WriteLine(specialCounter1.GetValue() = 7)
        '
        Console.ReadLine()
    End Sub
End Module
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