ReverseNumber

namespace _05.ReverseNumber
{
    using System;
    using System.Linq;

    class ReverseNumber
    {
        static void Main()
        {
            Console.Write("Insert floating point number = ");
            double num = double.Parse(Console.ReadLine());
            double reversed = GetReversedNumber(num);
            Console.WriteLine(reversed);
        }

        private static double GetReversedNumber(double num)
        {
            if (num < 0)
            {
                return - double.Parse(string.Join(
                    "",
                    num
                    .ToString()
                    .Remove(0, 1)
                    .Reverse()
                    .ToArray()));
            }

            return double.Parse(string.Join(
                "",
                num
                .ToString()
                .Reverse()
                .ToArray()));
        }
    }
}