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 trialCole Vanlandingham
1,059 PointsInitializing numSides
How am I supposed to initialize the numSides variable?
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 sideLength) : base(numSides)
{
SideLength = sideLenght;
numSides = 4;
}
}
}
3 Answers
Steven Parker
231,271 PointsAnything you pass to the base constructor is used to initialize NumSides (capital "N").
So in the definition of your own constructor, you would call "base(4)
" to initialize it to 4.
Also it looks like you have a typo where you have "sideLenght" instead of "sideLength".
Steve Perry
8,739 PointsSo why in the video did he type base(x,y) if it's inheriting from the Point class? How does typing x,y for a point makes sense?
Steven Parker
231,271 PointsIn the video example, he's passing the arguments that came in to the constructor along to the base. But here, the argument to Square is the length of the sides, but the base constructor is expecting the number of sides (which we know is 4 since it's a square).
Steve Perry
8,739 PointsSteven Parker wow, thanks so much that literally helped a ton!!! I appreciate it!