Write a program enter the string and count each character and total characters.

    class Program 

    {

        static void Main(string[] args) 

        {

            string str = "Apple is a nice fruit";

            Console.WriteLine("Total character: {0}", str.Count());

            while (str.Length > 0) 

            {

                Console.Write(str[0] + ": "); 

                int count = 0;

                {

                for (int j = 0; j < str.Length; j++)

                    if (str[0] == str[j]) 

                    {

                        count++;

                    }

                }

                Console.WriteLine(count);

                str = str.Replace(str[0].ToString(), string.Empty);

            }

            Console.ReadLine();

        }

    } 

}