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

Joseph Thompson
Joseph Thompson
4,595 Points

Getting a "Bummer" remark asking whether my "Square constructor take[s] a single parameter named sideLength?"

Can someone show me what I am missing because I see it in the constructor.

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

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

    class Square:Polygon
    {
        public readonly int SideLength;

        public base Square(int sideLength)
        {
            NumSide = 4;
            SideLength = sideLength;
        }
    }
}

2 Answers

Steven Parker
Steven Parker
231,248 Points

The "base" reference should come after the constructor declaration, separated by a colon, and passing in "4" as the number of sides:

        public Square(int sideLength) : base(4)

Also, you won't need the "NumSide" variable.

Joseph Thompson
Joseph Thompson
4,595 Points

Thanks, I didn't fully understand, but now it clicks and you helped point me in the right direction.