Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

C# C# Objects Encapsulation with Properties Computed Properties

How would one solve for: Did you make the 'Square.Area' property with no setter?

How do you get around the above error? I tried to remove the 'private set;' and that does not work. Thanks.

Square.cs
using System;

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


        public double Area {get; set; }

        public Square(double sideLength) : base(4)
        {
            SideLength = sideLength;
            Area = Math.Sqrt(SideLength);
        }

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

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

2 Answers

Steven Parker
Steven Parker
218,596 Points

It's phrased as a question to make it a hint, but clearly the code has a "set;" statement but the challenge is expecting the new property to not have a setter. So you'll need to remove it.

Also, the currently empty getter needs to have a code body that will return the calculated area.

Got it. Thank you!