File Directory VB.Net

Imports System
Imports System.IO
Public Class Test
    Public Shared Sub Main()
        Dim path1 As String = "c:\temp\MyTest.txt"
        Dim path2 As String = "c:\temp\MyTest"
        Dim path3 As String = "temp"
        If Path.HasExtension(path1) Then
            Console.WriteLine("{0} has an extension.", path1)
        End If
        If Path.HasExtension(path2) = False Then
            Console.WriteLine("{0} has no extension.", path2)
        End If
        If Path.IsPathRooted(path3) = False Then
            Console.WriteLine("The string {0} contains no root information.", path3)
        End If
        Console.WriteLine(Path.GetFullPath(path3))
        Console.WriteLine(Path.GetTempPath())
        Console.WriteLine(Path.GetTempFileName())
    End Sub
End Class