' Visual Basic 2008 9.0 .NET Examples - Introduction to Procedures - Procedures and Functions : 
Module Exercise1Task
    Sub Main()
        Dim x As Integer = 4
        Dim y As Integer = 5
        Dim z As Integer = 6
        '
        Test(x, y, z + 1)
        '
        Console.WriteLine("Main x : " & x)
        Console.WriteLine("Main y : " & y)
        Console.WriteLine("Main z : " & z)
        Console.ReadLine()
    End Sub
    Sub Test(ByRef y As Integer, ByVal z As Integer, ByRef x As Integer)
        z ^= 2
        x += z
        y += z
        '
        Console.WriteLine("Test x : " & x)
        Console.WriteLine("Test y : " & y)
        Console.WriteLine("Test z : " & z)
    End Sub
End Module
' Visit www.studyvb.com for more examples.  Copyright 2003-2008 De Wolf.