Need help with the value celsius in while

[Professor Pyg]

Hi, would need help on why my value "celsius" doesn't work in the "while (celsius > 77 || celsius < 73);" is there any particular I have to do, to extract it from the "public static double FahrenheitToCelsius(int fahrenheit)"?

using System;


namespace Bastun

{

class Program

{

static void Main(string[] args)

{

do

{

Console.WriteLine("Write your fahrenheit ");


//User inputs a value that is saved in fahrenheit

int fahrenheit = Int32.Parse(Console.ReadLine());


//Fahrenheit has now been converted to celsius

double celsius = FahrenheitToCelsius(fahrenheit);


Console.WriteLine("Your farhrenheit has been calculated to celsius, the current temperature in the bastu is " + celsius + " celsius");


if (celsius < 73)

{

Console.WriteLine("It's too cold, turn it up a bit!");

}

else if (celsius > 77)

{ Console.WriteLine("It's too hot, turn it down a bit!"); }


else if (73 <= celsius && celsius <= 77)

{ Console.WriteLine("It's a good temperature!"); }


} while (celsius > 77 || celsius < 73);


}


public static double FahrenheitToCelsius(int fahrenheit)

{


//From fahrenheit to celsius

double celsius = (fahrenheit - 32) * 5 / 9;

return celsius;

}


}

}

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