Java构造重载求点与原点、点与固定点、点与点的距离

import java.util.Scanner;

public class CPoint {
    public static void main(String[] args){
        int x1,x,y1;
        Scanner scn=new Scanner(System.in);
        x1=scn.nextInt();
        y1=scn.nextInt();
        x=scn.nextInt();
        Point p1 = new Point(x1,y1);
        Point p2 = new Point(x);
        System.out.println(String.format("%.2f", p1.distance()));
        System.out.println(String.format("%.2f", p2.distance()));
        System.out.println(String.format("%.2f", p1.distance(-6,-8)));
        System.out.println(String.format("%.2f", p1.distance(p2)));
    }

}
class Point {
    private int x;
    private int y;

    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }

    public Point(int x) {
        this(x, x);//重点
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

    public double distance(int x, int y) {
        return Math.sqrt(Math.pow(x - this.x, 2) + Math.pow(y - this.y, 2));
    }

    public double distance(Point p) {
        return distance(p.getX(), p.getY());
    }

    public double distance() {
        return distance(0, 0);
    }
}