C# Fahrenheit to Celsius Converter

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I have given here C# code to convert from Fahrenheit to Celsius and Celsius to Fahrenheit.

Source Code

using System;

using System.Collections.Generic;

using System.Text;

namespace NP

{

   class Fahrenheit_Celsius

   {    

      static void Main(string[] args)

      {

         System.Console.WriteLine("Fahrenheit and Celsius Converter");

         //while (true)

         {

            System.Console.Write("Enter a number: ");

            string input = System.Console.ReadLine();

            double val = Convert.ToDouble(input);

            double Celsius = (val - 32.0) * 5.0 / 9.0;

            double Fahrenheit = (val * (9.0 / 5.0) + 32);

            System.Console.WriteLine("{0} °F = {1} °C", val.ToString("F04"), Celsius.ToString("F04"));

            System.Console.WriteLine("{0} °C = {1} °F", val.ToString("F04"), Fahrenheit.ToString("F04"));

            System.Console.WriteLine();

         }

      }

   }

}

Output