Write A Line to a file

using System;
using System.IO;

public class WriteFileStuff {

public static void Main() {
       FileStream fs = new FileStream("c:\\tmp\\WriteFileStuff.txt", FileMode.OpenOrCreate, FileAccess.Write);   
       StreamWriter sw = new StreamWriter(fs);
       try {
  sw.WriteLine("Howdy World.");
 } finally {
  if(sw != null) { sw.Close(); }
 }
}
}