Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# C# Objects Inheritance Inheritance

Posted by Babatunde Obidare
.a{fill-rule:evenodd;}techdegree
Babatunde Obidare
Full Stack JavaScript Techdegree Student 4,925 Points

What is wrong with the code below that I'm getting the error message below: Bummer! Did you initialize

Why am I getting the error message: Bummer! Did you initialize the field 'numSides' to 4 in the base constructor?

namespace Treehouse.CodeChallenges { class Polygon { public readonly int NumSides;

    public Polygon(int numSides)
    {
        numSides = 4;
        NumSides = numSides;

    }
}

class Square : Polygon
{
    public readonly int SideLength;

    public Square(int sideLength) : base(numSides)
    {
        SideLength = sideLength;
    }
}

}

Polygon.cs 
namespace Treehouse.CodeChallenges
{
    class Polygon
    {
        public readonly int NumSides;

        public Polygon(int numSides)
        {
            NumSides = numSides;
        }
    }
}

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

:point_right: The constructor for Square can use "base(4)" to initialize numSides.

The code added should only be for the new class Square. You should not change the code provided by the challenge for Polygon.