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C# C# Objects Methods Methods

Posted by Trailhead Boise5
Trailhead Boise5
4,979 Points

"Did you create a method named EatFly that returns a bool value?" error.

I keep running into this error that says I don't have an EatFly method that returns a bool value. Here's my code for the error.

namespace Treehouse.CodeChallenges { class Frog { public readonly int TongueLength;

    public Frog(int tongueLength)
    {
        TongueLength = tongueLength;
    }
    public Eatfly(int distanceToFly)
    {
        bool eaten = distanceToFly = true;
        bool eaten != distanceToFly != true;
        return eaten;
    }
}

}

I have an EatFly method, but I'm guessing its not returning any bool values. Any ideas?

2 Answers

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

:point_right: You need to declare the return type between public and EatFly.

The definition of Frog above is not a good example to follow because it is a constructor, and constructors do not have return types.

Also, inside the method, you should only declare "eaten" one time. And what you assign to it should be the result of comparing the distance with the tongue length.

Trailhead Boise5
Trailhead Boise5
4,979 Points

Here's my new code based on your feedback.

namespace Treehouse.CodeChallenges { class Frog { public readonly int TongueLength;

public Frog(int tongueLength)
{
    TongueLength = tongueLength;
}
public bool Eatfly(int distanceToFly)
{
    bool eaten = distanceToFly.tongueLength = 0;
    return eaten;
}

} }

I'm still running into the same error. I don't quite understand what you meant about comparing the distance with the tongue length. Can you elaborate a little more?

ujz ujz
PLUS
ujz ujz
Courses Plus Student 6,664 Points
ujz ujz
ujz ujz
Courses Plus Student 6,664 Points

The frog can only eat if its tongue is as long as the distance. And that's what why this method Eatfly exists: to check if the frog can reach or not.

So in your code, you need to check if it can reach or not. Here's what I wrote and it passed the checker:

public bool Eatfly (int distanceToFly)
{
//this returns true only if the tongue is long enough
bool eaten = TongueLength >= distanceToFly;
return eaten;
}

One thing I personally did not understand was why we need the return eaten part. Doesn't this method automatically return the true or false after it finishes running?

Andrew Perry
Andrew Perry
5,266 Points

it doesn't automatically return anything unless you use the return keyword. You could put instead

return TongueLength >= distanceToFly;