prac 9 ex 3 nooot final

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {
            FileStream tmp_file = new FileStream("e:/practice/tmp.txt", FileMode.Create, FileAccess.ReadWrite);
            using(FileStream first_file = new FileStream("e:/practice/first.txt", FileMode.Open, FileAccess.Read))
            {
                int i;
                while ((i = first_file.ReadByte()) != -1)
                tmp_file.WriteByte((byte)i);
            }
            using(FileStream first_file = new FileStream("e:/practice/first.txt", FileMode.Truncate, FileAccess.Write))
            {
                using(FileStream second_file = new FileStream("e:/practice/second.txt", FileMode.Open, FileAccess.Read))
                {
                int i;
                while ((i = second_file.ReadByte()) != -1)
                    first_file.WriteByte((byte)i);
                }
            }
            using(FileStream second_file = new FileStream("e:/practice/second.txt", FileMode.Truncate, FileAccess.Write))
            {
                int i;
                while ((i = tmp_file.ReadByte()) != -1)
                    second_file.WriteByte((byte)i);
            }
            tmp_file.Close();

            Console.ReadKey();
        }
    }
}