Java Sorting Array of points!

[Jcbconway]

Ok, and how do i do that? haha. and fubarable, this is what happens when you help people who have less developed methods (; Hopefully, when ill be better and eventually be able to use class methods directly, and work around a lot of these minor problems. after all, im only 16, ive got along time...i hope XD

[Jcbconway]

Haha Helppppp!

[Jcbconway]

By the way, i realize that i could just do this:

Comparator<Point> pointorder = new Comparator<Point>(){
           public int compare(Point p1, Point p2) {
                double sort = p1.getX() - p2.getX();
                if(sort < 0) {
                    return -1;
                }else if(sort > 0){
                    return 1;
                }else{
                 return 0;   
                }
            }
         };

But, i am would like to know how to do it the skimed down way, that im having trouble with. ill just sub this in till i figure it out, but i really rally really want to know the other way.

[pbrockway2]

That method looks good to me. There isn't a "skimmed down" way except to do the subtraction with the x and y fields.

Do you know what Fubarable and I mean by those fields?

[pbrockway2]

Also maybe you could post where you are now. I mean how is that comparator being used, and is it giving the sorted order you expect?

[Jcbconway]

Well, i will give you the version im on, as soon as im finished with it! im almost there! also, im not sure if i understand what you mean by those fields. and yes, im getting what i want, ive put it through some ordering tests and its working!

[pbrockway2]

Great. The following isn't intended to sidetrack you - better to stick with something that does what you want.

The Point class offers methods like getX() and getY() that return coordinates.

Point p = new Point(1, 2);
double foo = p.getX();
// foo is now the x-coordinate of point p

But there are also x and y. They aren't methods, so you don't use parentheses. They allow you to directly access the point's data:

Point p = new Point(1, 2);
// p.x is now the x-coordinate of point p

Consider the expression "p1.x - p2.x". It has the right sign to be returned by compare() and it's of the right type (int).