How to Convert a Byte Array to Integer in C# ?

Published on May 26, 2014 by abundantcode

Filed under C#

Last modified May 26, 2014

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To Convert a Byte array back to the integer , the developers can use the BitConverter.ToInt32 method which accepts byte array as input and returns the number .

Below is a sample code snippet that demonstrates how to convert a byte array to integer in C#.

How to Convert a Byte Array to Integer in C# ?

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

namespace AbundantcodeConsoleApp
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            byte[]  output = ConvertNumberToByteArray();
            Int32 num = ConvertByteArrayToInteger(output);
            Console.WriteLine(num);
            Console.ReadLine();
        }

        // Function to Convert Byte Array to Integer
        private static int ConvertByteArrayToInteger(byte[] output)
        {
            Int32 num = BitConverter.ToInt32(output, 0);
            return num;
        }

        // Function to Convert a Number to Byte Array

        private static byte[] ConvertNumberToByteArray()
        {
            Int32 Input = 75;
            byte[] ByteData = BitConverter.GetBytes(Input);
            return ByteData;
        }
    }
    
}

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