Write string to a text file in CSharp

/* w w w.j  a  va2  s  .  co  m*/
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

class MainClass
{
    static void Main(string[] args)
    {
        StreamWriter writer = new StreamWriter(@"c:\myfile.txt");
        for (int i = 0; i < 3; i++)
        {
            writer.Write(i.ToString());
        }
        writer.Flush();
        writer.Close();

        foreach (string line in File.ReadAllLines(@"c:\myfile.txt"))
        {
            Console.WriteLine(line);
        }
    }
}