各位大神，新手刚学Java，可以帮忙看一下为什么结果一直是零吗

[echoccl]

package pro;

import pro.point.s;

class point {
double x,y;
point(){}
point(double x,double y){
this.x=x;
this.y=y;}
void show(){
System.out.println("("+x+","+y+")");
}
static class s {

point p1,p2;
double s;
s(){}
s(point p1,point p2){
this.p1=p1;this.p2=p2;
s = Math.sqrt((p1.x - p2.x) * (p1.x - p2.x)
+(p1.y-p2.y) * (p1.y-p2.y));

}
void show() {System.out.println(s);}
}
}

public class dian {
public static void main(String[] args){
s s1 =new s();
point p1=new point(2,3);
point p2=new point(2,5);
p1.show();
p2.show();
s1.show();
}
}

[天行归来]

s s1 =new s(); 这行代码放在 p1和p2实例化后，s1.show() 之前。

[echoccl]

好的谢谢谢谢

[Ww��]

典型凡尔赛现场