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C# C# Objects Loops and Final Touches Static Members

Andrew Winkler
Andrew Winkler
37,739 Points
Posted by Andrew Winkler
Andrew Winkler
37,739 Points

So I don't get why this is not working... It's a static method for the Pythagorean theorem.

Welp. Here's my code:

RightTriangle.cs 
using System.math;

namespace Treehouse.CodeChallenges
{
    class RightTriangle
    {
        double a, b, c;
    }

    public static CalculateHypotenuse(double a, double b)
    {
        c = math.Sqrt(a * a + b * b);
        return c;
    }
}

1 Answer

Ryan Sheppard
Ryan Sheppard
2,866 Points
Ryan Sheppard
Ryan Sheppard
2,866 Points

A few problems here...

  1. Your CalculateHypotenuse method isn't in a class -- methods cannot exist in a namespace.
  2. Your CalculateHypotenuse method doesn't have a return value -- you want it to return a double.
  3. Your using System.math; directive should read using System; -- Math is a class, not a namespace.
  4. math in your CalculateHypotenuse method should read Math.Sqrt -- note capitalized 'M'.
  5. Static methods cannot access instance members, so your CalculateHypotenuse method can't actually access the c field.

This is what you were probably going for:

using System;

namespace Treehouse.CodeChallenges
{
    class RightTriangle
    {
        public static double CalculateHypotenuse(double a, double b)
        {
            return Math.Sqrt(a * a + b * b);
        }
    }
}