Data Type VB.Net Tutorial

Module Tester
    Public Sub Main()
        Dim sHello As String = "Hello World"
        Console.WriteLine("Original string: {0}", sHello)
        Console.WriteLine("Lowercase (LCase(sHello)) : {0}", LCase(sHello))
    End Sub
End Module
Original string: Hello World
Lowercase (LCase(sHello)) : hello world