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C# C# Objects Inheritance Inheritance

Posted by Gregory Engelbrecht
Gregory Engelbrecht
1,917 Points

Can't figure out what I'm doing wrong - "Does your Square constructor take a single parameter named sideLength?"

Hey, I'm getting stopped at the challenge here. I have been following up to this point but I'm stuck. Can anyone tell me what I'm doing wrong here?

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

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

    class Square : Polygon
    {
        Square(int sideLength) : base(4)
        {
            public readonly int SideLength = sideLength;
        }
    }
}

1 Answer

Dale Severude
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.a{fill-rule:evenodd;}techdegree seal-36
Dale Severude
Full Stack JavaScript Techdegree Graduate 71,349 Points
Dale Severude
.a{fill-rule:evenodd;}techdegree seal-36
Dale Severude
Full Stack JavaScript Techdegree Graduate 71,349 Points

Hi David,

A couple of things.

First, declare SideLength outside of the Square constructor. It needs to be accessible to all squares, as in Square.SideLength

Second, make the Square constructor public. If it is not public, you cannot instantiate it.

Third, continue to keep the assignment of SideLength inside the Square constructor, but do not declare it there.

With these changes your code will work.

Gregory Engelbrecht
Gregory Engelbrecht
1,917 Points

Thanks so much Dale!