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C# C# Objects Loops and Final Touches For Loops

Andrew Hawke
Andrew Hawke
1,115 Points
Posted by Andrew Hawke
Andrew Hawke
1,115 Points

An object reference is required to access non-static member

Stuck on frog code challenge regarding loops. Get an error "An object reference is required to access non-static member".

Can't adress TongueLength to use it in my loop for whatever reason.

FrogStats.cs 
namespace Treehouse.CodeChallenges
{
    class FrogStats
    {

        double total;

        public static double GetAverageTongueLength(Frog[] frogs)
        {
            for(int index = 0; index < frogs.Length; index++)
            {
                total += Frog.TongueLength;
            }
        }
    }
}
Frog.cs 
namespace Treehouse.CodeChallenges
{
    public class Frog
    {
        public int TongueLength { get; }

        public Frog(int tongueLength)
        {
            TongueLength = tongueLength;
        }
    }
}

1 Answer

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

The name "Frog" is the class itself, not an instance.

You could build a reference to an instance by using the argument "frogs" and subscripting it ("[]") with your loop index.

Andrew Hawke
Andrew Hawke
1,115 Points
Andrew Hawke
Andrew Hawke
1,115 Points

This is by far the hardes code challenge for me, because i don't have a slightest idea how to pull it off. I just don't understand. In order to count average length, i need to adress tongueLength from the Frog class, but no matter how i try to do this, i get the compiler error, and i really don't understand. Shouldnt the public TongueLength be accessible from every other class? I'm just stuck and i don't know what to do anymore.

Update: Oh, i figured it out. Just had to do a bit of thinking. Thanks for the tip.

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

Sometimes it only takes a different perspective. :smile: