ROT 13 algorithm

Question

I need to write a program that uses ROT13 algorithm to encrypt and decrypt a string of alpha data...any ideas? I am really new to C# (and programming for that matter) and could really use some help...

bilnaad · Answer

Is this it? using System; namespace csConsole { class Rot13 { public static string Encode(String s) { char[] chars = new char[s.Length]; for (int i = 0; i = 'A' && c = 'N' && c = 'a' && c = 'n' && c = 'M') chars[i] = ((char) (c-13)); else if (c = 'Z') chars[i] = ((char) (c+13)); else if (c = 'm') chars[i] = ((char) (c-13)); else if (c = 'z') chars[i] = ((char) (c+13)); else chars[i] = ((char) c); } return new string(chars); } static void Main(string[] args) { Console.WriteLine(Please enter a string to encode/decode

); string str = Console.ReadLine(); Console.WriteLine( string.Format(
Orginal string is {0} str) ); Console.WriteLine( string.Format(Encoded string is {0} Rot13.Encode(str)) ); Console.WriteLine( string.Format(Decoded string is {0} Rot13.Decode(str)) ); Console.Read(); } } }