Return the average length of the tongues of the frogs in the array. Use a for loop as part of your solution.

Question

How do I solve this challenge problem?

I keep getting an error that says, "Cannot Implicitly convert Frog.Cs to double."

FrogStats.cs

using System;

namespace Treehouse.CodeChallenges
{
    class FrogStats
    {
        public static double GetAverageTongueLength(Frog[] frogs)
        {
            double total = 0;
            int i = 0;
            double sum = 0;


            for(; i < frogs.Length; i++)
            {
                sum = (double)frogs[i];
                total += sum;
            }

            //Console.WriteLine(avg/i);
        }
    }
}

Frog.cs

namespace Treehouse.CodeChallenges
{
    public class Frog
    {
        public int TongueLength { get; }

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

Answer 1 · 2016-07-15T23:13:53Z

July 15, 2016 11:13pm

frogs is array and frogs[i] is one of constructor. You can access tongueLength by using frogs[i].TongueLength frogs[i].TongueLength is double data type.

 for(; i < frogs.Length; i++)
            {
                sum = (double)frogs[i];
                total += sum;
            }

I will suggest to use this kind...

 for(int i = 0; i < frogs.Length; i++)
            {

            }

My answer is

 namespace Treehouse.CodeChallenges
{
    class FrogStats
    {
        public static double GetAverageTongueLength(Frog[] frogs)
        {
            double total=0;
            for(int i=0;i<frogs.Length;i++)
            {
                total+=frogs[i].TongueLength; //frogs[i].ToLength is double data type 
            }
            return total/frogs.Length; //average = total / sum of item
        }
    }
}

Answer 2 · 2016-07-15T22:58:24Z

July 15, 2016 10:58pm

Remember, you're averaging the tongue lengths, not the frogs themselves.

Since a frog isn't just a value, it cannot be converted to a double by casting.

You'll also need to take care of these issues:

after adding the lengths, you'll need to divide by the number of frogs to get an average
your function will need to return the average value

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Justin Molyneaux

Justin Molyneaux

Return the average length of the tongues of the frogs in the array. Use a for loop as part of your solution.

2 Answers

Yi Chiang

Yi Chiang

Justin Molyneaux

Justin Molyneaux

HIDAYATULLAH ARGHANDABI

HIDAYATULLAH ARGHANDABI

Steven Parker

Steven Parker

Remember, you're averaging the tongue lengths, not the frogs themselves.

Justin Molyneaux

Justin Molyneaux