Encoding.BigEndianUnicode.GetString

   
 
using System;
using System.Text;

class StringEncodingApp {
    static void Main(string[] args) {
        byte[] bb = new byte[] { 0, 72, 0, 101, 0, 108, 0, 108, 0, 111 };
        string t = Encoding.BigEndianUnicode.GetString(bb);
        Console.WriteLine(t);
    }
}