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C# program to read byte buffer from a file

In this C# program, we are going to learn how to read all bytes (byte buffer) from a file? To read all bytes, we are using ReadAllBytes() method of File class.
Submitted by IncludeHelp, on November 08, 2017

Given a file and we have to read it’s all bytes (byte buffer) using C# program.

File.ReadAllBytes()

This is a method of "File class, it is used to read all bytes from the given file.

Syntax:

Byte[] ReadAllBytes(string filename);

Parameter(s):

  1. filename - name of the file.

Return value:

This method return array of bytes, in which every element of array contains a byte.

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.





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