Imports System
Imports System.IO
Imports System.Text
Public Class Test
Public Shared Sub Main()
Dim path As String = "c:\MyTest.txt"
Dim fi As FileInfo = new FileInfo(path)
Dim fs As FileStream
If fi.Exists = False
fs = fi.Create()
Dim info As Byte() = New UTF8Encoding(true).GetBytes("This is some text in the file.")
fs.Write(info, 0, info.Length)
fs.Close()
End If
fs = fi.Open(FileMode.Open, FileAccess.Read)
Dim b(1024) As byte
Dim temp As UTF8Encoding = New UTF8Encoding(true)
Do While fs.Read(b,0,b.Length) > 0
Console.WriteLine(temp.GetString(b))
Loop
Try
fs.Write(b,0,b.Length)
Catch e As Exception
Console.WriteLine("Writing was disallowed, as expected: {0}", e.ToString())
End Try
fs.Close()
End Sub
End Class