Option Explicit On
Option Strict On
Module Program
Public Function Swap(Of T)(ByRef a As T, ByRef b As T) As T
Console.WriteLine("T is a {0}.", GetType(T))
Dim temp As T
temp = a
a = b
b = temp
End Function
Sub DisplayBaseClass(Of T)()
Console.WriteLine("Base class of {0} is: {1}.", GetType(T), GetType(T).BaseType)
End Sub
Sub Main()
Dim a, b As Integer
a = 10 : b = 40
Swap(Of Integer)(a, b)
Dim s1, s2 As String
s1 = "Generics" : s2 = "Rock"
Swap(Of String)(s1, s2)
Dim b1, b2 As Boolean
b1 = True : b2 = False
Swap(b1, b2)
DisplayBaseClass(Of Boolean)()
DisplayBaseClass(Of String)()
DisplayBaseClass(Of Integer)()
End Sub
End Module
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