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 Inheritance Inheritance

Marwa Almoqbali
Marwa Almoqbali
639 Points
Posted by Marwa Almoqbali
Marwa Almoqbali
639 Points

Use base to initialize NumSides to 4

what do they mean by 4 in the qes

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

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

    } 
      class Square : Polygon
        {
            public readonly int SideLength;

            public Square(int sideLenght) : base (4)
            {
                SideLenght = sidelenght;
            }

      }
    }
}

2 Answers

Steven Parker
Steven Parker
231,264 Points
Steven Parker
Steven Parker
231,264 Points

You've got the base parameter in there correctly. :+1:

The issue is where you wrote "SideLenght" instead of "SideLength".

Also, it looks like you have a stray extra closing brace (}).