package Demo;

public class Point {

    private double x, y, z;

    public Point(double _x, double _y, double _z) {

        x = _x;

        y = _y;

        z = _z;

    }

    public void setX(double _x) {

        x = _x;

    }

    public double getPointDistance(Point p) {

        return (p.x - x)*(p.x - x) + (p.y - y)*(p.y - y) + (p.z - z)*(p.z - z);

    }

    public static void main(String[] args) {

        Point p = new Point(1.0, 2.0, 3.0);

        Point p1 = new Point(0.0, 0.0, 0.0);

        System.out.println(p.getPointDistance(p1));

        p.setX(3.0);

        System.out.println(p.getPointDistance(new Point(1.0,1.0,1.0)));

    }

}