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C# C# Objects Loops and Final Touches For Loops

Posted by Matthew Egan
Matthew Egan
1,437 Points

I cann't use the "+" symbol in my code.

I am attempting to sum up the elements in an array that was not provided, and so I assumed that it was there. I tried creating the array, but it broke. I think that this is the correct way to add up an array, and then divide by the number of elements. Where am I going wrong here?

FrogStats.cs 
using System;

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

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

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

You're close, but have a few issues:

  • don't declare your loop index as a double and recast it, just declare it as int to begin with
  • declaring the index before the loop is OK, but it's typically done in the first clause of the for
  • you can't add frogs directly, but you could add their TongueLength values