I'm having trouble creating a text file, and writing a stored integer to it as a save text file.

What I have is:
(I've imported System.IO already)

Dim id As Integer
Dim writer As StreamWriter
writer = File.CreateText("save.txt")

writer.WriteLine(id)
writer.Flush()
writer.Close()


When I run my program and select save, it doesn't create a save.txt file. What am I doing wrong?