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 Encapsulation with Properties Computed Properties

Andreas Gruber
Andreas Gruber
2,142 Points
Posted by Andreas Gruber
Andreas Gruber
2,142 Points

Write a computed property named Area that returns the area of the square.

Which Area should I return??

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

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

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

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

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

:point_right: You should compute and return the area of the square itself.

The area of a square is side × side, or in this case, "SideLength * SideLength".