C# program to read byte buffer from a file

Program

using System;
using System.IO;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main()
        {
            byte[] byteBuff ;

            byteBuff = File.ReadAllBytes("Sample.txt");

            Console.WriteLine("Data of file Sample.txt :");
            for (int i = 0; i < byteBuff.Length; i++)
            {
                Console.Write(byteBuff[i] + " ");
            }
            Console.WriteLine();
        }
    }
}

Output

Data of file Sample.txt :
1 2 3 4 5

Note: In above program, we need to remember, when we use "File" class, System.IO namespace must be included in the program.