Comparator with double type

Question

I have written the following code:

public class NewClass2 implements Comparator
{
    public int compare(Point p1, Point p2)
    {
        retur         


        

Answer 1

I just want to expand on Peter Lawrey answer on JDK 8, if you do it like this:

public class NewClass2 implements Comparator {
    public int compare(Point p1, Point p2) {
        return Double.compare(p1.getY(), p2.gety());
    }    
}

You could define this comparator using a lambda expression pretty easily

(Point p1,Point p2) -> Double.compare(p1.getY(), p2.gety())  

Better yet, you could use a member reference like this:

Double::compare