using System;

​

namespace DollarConversion

{

    //class to handle conversions

    public static class ConversionManager

    {

        static double usdVal = 72.38;

        //inr to USD

        public static double INRToUSD(string inr)

        {

            double rupee = Double.Parse(inr);

            double usd = rupee / usdVal;

            return Math.Round(usd, 2);

        }

​

        //usd to INR

        public static double USDToINR(string usd)

        {

            double dollar = Double.Parse(usd);

            double rupee = dollar * usdVal;

            return Math.Round(rupee, 2);

        }

    }

​

    public class Converter

    {

        public static void Main()

        {

            Console.WriteLine("Please select the convertor direction");

            Console.WriteLine("1. From INR to USD.");

            Console.WriteLine("2. From USD to INR.");

            Console.Write(":");

            string selection = Console.ReadLine();

            double Rupee, USD = 0;

            switch (selection)

            {

                case "1":

                    Console.Write("Please enter the INR value: ");

                    USD = ConversionManager.INRToUSD(Console.ReadLine());

                    Console.WriteLine("Amount in USD --> " + USD);

                    break;

                case "2":

                    Console.Write("Please enter the USD value: ");

                    Rupee = ConversionManager.USDToINR(Console.ReadLine());

                    Console.WriteLine("Amount in INR --> " + Rupee);

                    break;

                default:

                    Console.WriteLine("Please select a convertor.");

                    break;

            }

        }

    }

}