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C# C# Objects Encapsulation with Properties Expression Bodied Members

Posted by Alan Smail
Alan Smail
3,317 Points

i am stuck at step 2

i dont understand why it keeps giving me a bummer. I have checked the Empression Bodied Members clip abut 10 times and i still dont get it. Please i need help with this one

Square.cs 
namespace Treehouse.CodeChallenges
{
    class Square : Polygon
    {
        public double SideLength => SideLength * SideLength;

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

        public void Scale(double factor) =>  SideLength *= factor;

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

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

1 Answer

andren
andren
28,558 Points
andren
andren
28,558 Points

Your code for the Scale method is fine but you have made changes to the SideLength property which was not asked for, and have removed the Area property all together.

Here is the solution along with some comments:

namespace Treehouse.CodeChallenges
{
    class Square : Polygon
    {
        public double SideLength { get; private set; } // This was modified when it should not be

        public double Area => SideLength * SideLength; // This property was removed outright

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

        public void Scale(double factor) => SideLength *= factor;
    }
}
Alan Smail
Alan Smail
3,317 Points

Thank you so much Andren