Question

I just wondering if this code is correct that I found in some information. The thing I find strange, is that diameter is used twice in both example, is this really correct?

public Ellipse(double diameter): base(diameter, diameter)

Answer 1

The syntax is correct. The classes might look something like that:

public class Base
{
  public Base(double d1, double d2)
  {
  }
}

public Eclipse : Base
{
   public Ellipse(double diameter)
        : base(diameter, diameter)
   {
   }
}