using System;

using System.Text;

​

public class Program

{

    public static void Main()

    {

        // String

        String s = "Hi there.";

​

        // Encoding object

        Encoding encodingUTF8 = Encoding.UTF8;

​

        // Encode string to byte array

        Byte[] encodedBytes = encodingUTF8.GetBytes(s);

        for(int i = 0; i < encodedBytes.Length;i++){

            Console.Write(encodedBytes[i] + (i < encodedBytes.Length -1 ? ",":""));

        }

​

        // Decode to string

        String decodedString = encodingUTF8.GetString(encodedBytes);

        Console.WriteLine("\nDecoded string: " + decodedString);

    }

}