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

It is so convinent in Java 8, choose anyone just as you wish:

Comparator cp = (a, b) ->  Double.compare(a.getScore(), b.getScore());

Comparator cp = Comparator.comparing(someClass::getScore);

Comparator cp = Comparator.comparingDouble(someClass::getScore);