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C# C# Objects Encapsulation with Properties Computed Properties

Andrew Winkler
Andrew Winkler
37,739 Points

The challenge says I didn't declare a property named Area, but I did...

Could someone explain why my code is not working?

Square.cs
namespace Treehouse.CodeChallenges
{
    class Square : Polygon
    {
        public double SideLength { get; private set; }
        public double Area;


        public Square(double sideLength) : base(4)
        {

            SideLength = sideLength;
            Area = SideLength * SideLength;
        }

    }
}
Polygon.cs
namespace Treehouse.CodeChallenges
{
    public class Polygon
    {
        public int NumSides { get; private set; }


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

1 Answer

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Hi there! It's because you need a read only getter with no setter. Take a look:

namespace Treehouse.CodeChallenges
{
    class Square : Polygon
    {
        public double SideLength { get; private set; }
        public double Area { get;}

        public Square(double sideLength) : base(4)
        {
            SideLength = sideLength;
            Area = SideLength * SideLength;
        }
    }
}

Hope this helps! :sparkles: