请大神看一下哪里出了问题，谢谢
class point{
    double x,y,z;
    point(double _x,double _y,double _z){
        x=_x;
        y=_y;
        z=_z;
    }
    void setX(double _x){
        x=_x;
    }
    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 Textpoint{
    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));
    }
    p.setX(5.0);
    System.out.println(p.getDistance(new point(1.0,1.0,1.0)));
   
}

public class Textpoint{
    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));
    }
    p.setX(5.0);
    System.out.println(p.getDistance(new point(1.0,1.0,1.0)));
   
} 

p.setX(5.0)
........
这句在main  外面？？？      

是的，弄错了，谢谢啦！