class Point{
double x,y,z; Point(double _x, double _y, double _z){ x=_x; y=_y; z=_z; } double getDistance(Point p){ return (x-p.x)*(x-p.x)+(y-p.y)*(y-p.y)+(z-p.z)*(z-p.z); } } public class TestPoint{ 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.getDistance(p1)); } }