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C#

Posted by Christian Halvorsen
Christian Halvorsen
3,899 Points

using visual studio community edition, and the code is not working

Hello! I'm using Visual Studio to follow the tutorials, and it won't allow me to use double. What I mean is i've completly copy-pasted the code from the tutorial, however, if I type in 20.5 i get "That is not valid input".

Here is the code:

using System; namespace fitnessApp { class Program { static void Main() { double runningTotal = 0;

        bool keepGoing = true;

        while (keepGoing)
        {
            // Prompt user for minutes exercised 
            Console.Write("Enter how many minutes you exercised or type \"quit\" to exit: ");
            string entry = Console.ReadLine();

            if (entry.ToLower() == "quit")
            {
                keepGoing = false;
            }
            else
            {
                try
                {
                    // Add minutes exercised to total 
                    double minutes = double.Parse(entry);

                    if (minutes <= 0)
                    {
                        Console.WriteLine(minutes + " is not an acceptable value.");
                        continue;
                    }
                    else if (minutes <= 10)
                    {
                        Console.WriteLine("Better than nothing, am I right?");
                    }
                    else if (minutes <= 30)
                    {
                        Console.WriteLine("Way to go hot stuff!");
                    }
                    else if (minutes <= 60)
                    {
                        Console.WriteLine("You must be a ninja warrior in training!");
                    }
                    else
                    {
                        Console.WriteLine("Okay, now you're just showing off!");
                    }

                    runningTotal += minutes;
                }
                catch (FormatException)
                {
                    Console.WriteLine("'" + entry + "' is not valid input.");
                    continue;
                }

                // Display total minutes exercised to the screen 
                Console.WriteLine("You've entered " + runningTotal + " minutes.");
            }
            // Repeat until user quits
        }
        Console.WriteLine("Goodbye");
        Console.ReadLine();
    }
}

}

Is there something going on in Visual Studio that I don't know about?

1 Answer

Edward Ries
Edward Ries
7,388 Points
Edward Ries
Edward Ries
7,388 Points

Christian, I'm not sure what could be happening but I copied and pasted your code example into Visual Studio 2015 as a new console application. Ran it and entered 20.5 and it replied with:

Way to go hot stuff! You've entered 20.5 minutes.

If I was having your problem I would debug the problem by first checking my input, for example, check the length of your input, Use a double.TryParse to test to see if it parse correctly. At this point, please try again as the code works fine without change.

Christian Halvorsen
Christian Halvorsen
3,899 Points

I figured out what the issue was. My windows lang is Norwegian, so instead of using the Decimal Seperator " . " it uses " , ".

Throws an error : 20.5 Works: 20,5

I prefer working with the " . " so I found this handy snippet of code on stackoverflow:

System.Globalization.CultureInfo customCulture = (System.Globalization.CultureInfo)System.Threading.Thread.CurrentThread.CurrentCulture.Clone(); customCulture.NumberFormat.NumberDecimalSeparator = "."; System.Threading.Thread.CurrentThread.CurrentCulture = customCulture;

( Source: https://stackoverflow.com/questions/9160059/set-up-dot-instead-of-comma-in-numeric-values )