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Corrina Corp
5,422 PointsHow do I convert an int to a double, and is that my problem with this challenge?
The problem is to get the average tongue length, but I am unsure why this will not compile.
namespace Treehouse.CodeChallenges
{
class FrogStats
{
public static double GetAverageTongueLength(Frog[] frogs)
{
double final = 0.0;
for(double i = 0.0; i < frogs[i].TongueLength; i++)
{
final = final + frogs[i];
}
}
}
}
namespace Treehouse.CodeChallenges
{
public class Frog
{
public double TongueLength { get; }
public Frog(double tongueLength)
{
TongueLength = tongueLength;
}
}
}
2 Answers
Allan Clark
10,810 PointsA couple issues with your syntax here. First, the index of a for loop must be an int. Secondly, you want to loop through the array (i < frogs.Length) and add the current index's TongueLength property.
The double only comes into play when you compute the average. So the idea is to add them all up and return the result divided by the number of frogs.
Should end up looking something like this:
public static double GetAverageTongueLength(Frog[] frogs)
{
int sum = 0; //the variable we use to keep track of the running sum of TongueLengths
for(int i = 0; i < frogs.Length; i++)
{
sum = sum + frogs[i].TongueLength;
}
return sum / frogs.Length;
}
Corrina Corp
5,422 PointsThank you! This worked.