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C#

Posted by Michael Hampshire
Michael Hampshire
12,206 Points

Same code as video, different result?

I believe that I have typed everything exactly the same (except for variables) as in the C# video "Using Static Methods" under Methods in C# Objects course, but when I run my program, I get -2147483648?

Here is my code:

using System;

namespace TreehouseDefense

{

class Point


{
    public readonly int xLocation;
    public readonly int yLocation;

    public Point(int x, int y)
    {
        xLocation = x;
        yLocation = y;
    }

    public int DistanceTo(int x, int y)
    {
        int xDifference = xLocation - x;
        int yDifference = yLocation - y;

        int xDiffSquared = xDifference + xDifference;
        int yDiffSquared = yDifference + yDifference;

        return (int)Math.Sqrt(xDiffSquared + yDiffSquared);
    }
}

}

3 Answers

Edward Ries
Edward Ries
7,388 Points

I don't think this is the formula to square the distance. Try an asterisk. int xDiffSquared = xDifference + xDifference; int yDiffSquared = yDifference + yDifference;

int xDiffSquared = xDifference * xDifference; int yDiffSquared = yDifference * yDifference;

Seth Kroger
Seth Kroger
56,413 Points
Seth Kroger
Seth Kroger
56,413 Points

Squared means multiplied by itself, not added.

Michael Hampshire
Michael Hampshire
12,206 Points
Michael Hampshire
Michael Hampshire
12,206 Points

Yep that's it! Looked back at the video and found out that he multiplied the difference to get the squared, not add. My bad. Thank you for the help!