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Start your free trialKimmo Ojala
Python Web Development Techdegree Student 8,257 PointsHow to pass an argument to base constructor
Hi,
There must be something wrong with my code because I get an error message. I'm trying to initialize the numSides parameter of the child class Square by passing 4 to the parent class constructor. What am I doing wrong?
BR, Kimmo
namespace Treehouse.CodeChallenges
{
class Square : Polygon
{
public readonly int SideLength;
public Square(int numSides, int sideLength) : base(numSides)
{
SideLength = sideLength;
numSides = 4;
}
}
class Polygon
{
public readonly int NumSides;
public Polygon(int numSides)
{
NumSides = numSides;
}
}
}
1 Answer
Steven Parker
231,198 PointsRight technique, wrong value.
When they say "by passing 4 to the parent class constructor", they mean 4 — literally ("base(4)
").
Also, Square
should only take one argument. And you may need to define it after Polygon
.
Kimmo Ojala
Python Web Development Techdegree Student 8,257 PointsKimmo Ojala
Python Web Development Techdegree Student 8,257 PointsThanks Steven. The solution was so literal I just couldn't think of it. Kind of funny, what I tried didn't look right to me, but I would have never guessed that they mean literally what they say. Thanks again!