1 class XYPoint{
2 double x;
3 double y;
4 public void setX(double x){
5 this.x = x;
6 }
7 public void setY(double y){
8 this.y = y;
9 }
10 public double getX(){
11 return x;
12 }
13 public double getY(){
14 return y;
15 }
16 public void getDistence(XYPoint p){
17 double d = Math.sqrt((this.x-p.x)*(this.x-p.x)+(this.y-p.y)*(this.y-p.y));
18 System.out.println(d);
19 }
20 }
21
22 class Demo{
23 public static void main(String[] args){
24 XYPoint xy = new XYPoint();
25 XYPoint xy1 = new XYPoint();
26 xy.setX(1);
27 xy.setY(1);
28 xy1.setX(3);
29 xy1.setY(3);
30 xy.getDistence(xy1);
31 }
32 }
