Kode CSharp

using System;

namespace Kodecsharp.Example.System
{
    class IteratingString
    {
        public static void Main(string[] args)
        {
            string text = "1a2B3C4d5e6f7G8H9I0Z";

            //
            // Iterating string using foreach loop.
            //
            foreach (char c in text)
            {
                if (Char.IsDigit(c))
                {
                    Console.WriteLine(c + " is digit");
                } else if (Char.IsLetter(c))
                {
                    Console.WriteLine(c + " is letter");
                }
            }

            //
            // Iterating string using for loop.
            //
            for (int i = 0; i < text.Length; i++)
            {
                if (Char.IsUpper(text[i]))
                {
                    Console.WriteLine(text[i] + " is uppercase");
                } else if (Char.IsLower(text[i]))
                {
                    Console.WriteLine(text[i] + " is lowercase");
                }
            }

            //
            // Print the string in reverse order.
            //
            for (int i = text.Length - 1; i >= 0; i--)
            {
                Console.Write(text[i]);
            }

            Console.ReadLine();
        }
    }
}