Java中的点排序数组

Question

I have a class 'Point'. I want to sort an array of points, but I want to use 2 "compare" functions (I want to take 2 arrays, one with the points sorted by X and the other by Y). How can I make my class accept 2 comparing functions? Here's my code

static class Point implements Comparator<Point>{
    int x,y;
    int compareX(Point A , Point B){
        return A.x - B.x;
    }
    int compareY(Point A , Point B){
        return A.y - B.y;
    }
}

Answer 1

Instead of having Point implement Comparator , have 2 Comparator constants which compare by x and y respectively.

static class Point {
  public static final Comparator<Point> X_COMPARATOR = Comparator.comparingInt(Point::getX);

  public static final Comparator<Point> Y_COMPARATOR = Comparator.comparingInt(Point::getY);
}