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C# C# Objects Loops and Final Touches For Loops

Posted by Chris Gauthier
Chris Gauthier
Courses Plus Student 6,434 Points

Calculating the Average Length of the frogs tongues

Can somebody help me with this?

FrogStats.cs 
namespace Treehouse.CodeChallenges
{
    class FrogStats
    {
        public static double GetAverageTongueLength(Frog[] frogs)
        {
            double totalLength = 0;
            double avgLength = 0;

            for (int i=0; i <= frogs.Length; i++) 
            {
                totalLength += frogs[i];       
            }

            return totalLength / frogs.Length;
        }
    }
}
Frog.cs 
namespace Treehouse.CodeChallenges
{
    public class Frog
    {
        public int TongueLength { get; }

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

1 Answer

Emmanuel C
Emmanuel C
10,636 Points
Emmanuel C
Emmanuel C
10,636 Points

It seems you forgot to access the Frogs TongueLength property, when adding them to totalLength. You can access it with dot notation

 totalLength += frogs[i].TongueLength;

Also having the loop end when i <= frogs.Length will result in an OutOfBoundsException, due to C# being zero based. If the Length was 5 the last element will be at index 4. Trying to get index 5 will throw the error. Ending the loop when I < frogs.Length will solve it

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