IDE运行时，报错的问题

Question

class Point{
private double x;
private double y;

Point(double _x,double _y){
    x = _x;
    y = _y;
}

void setX(double _x){
    x = _x;
}
void setY(double _y){
    y = _y;
}

double getX(){
    return x;
}
double getY(){
    return y;
}

}

class Circle{
Point o;
double radius;

Circle(Point p, double r){
    o = p;
    radius = r;
}
Circle(double r){
    o = new Point(0.0,0.0);
    radius = r;
}

void setO(Point p){
    o = p;
}
void setRadius(double r){
    radius = r;
}

Point getO(){
    return o;
}
double getRadius(){
    return radius;
}

boolean contaons(Point p){
    double x = o.getX() - p.getX();
    double y = o.getY() - p.getY();
    if (x*x + y*y > radius*radius) return false;
    else return true;
}

double area(){
    return 3.14*radius*radius;
}

}
public class TestCircle {

public static void main(String[] args) {
    Circle c1 = new Circle(new Point(3.0,4.0),2.0);
    Circle c2 = new Circle(4.0);
    System.out.println("c1的圆心坐标，半径分别是："+"("+c1.getO().getX()+","+c1.getO().getY()+")"+";"+c1.getRadius());
    System.out.println("c2的圆心坐标，半径分别是："+"("+c2.getO().getX()+","+c2.getO().getY()+")"+";"+c2.getRadius());
    System.out.println("c1's area is "+c1.area());
    System.out.println("c2 's area is "+c2.area());
    c1.getO().setX(6.0);
    System.out.println("修改后c1的坐标为："+"("+c1.getO().getX()+","+c1.getO().getY()+")");
    System.out.println("修改后c1的面积："+c1.area());
    Point p = new Point(1.0,3.0);
    System.out.println("点（）是否在圆c1中"+c1.contaons(p));
}

}

```这一段代码，在控制台编译没有报错，正确输出，但是在eclipse中运行时报错，说Exception in thread "main" java.lang.NoSuchMethodError: Point.<init>(DD)V
    at TestCircle.main(TestCircle.java:66)
这个错误，怎么回事呢？
![图片说明](https://img-ask.csdn.net/upload/201601/17/1453016970_183892.png)

Answer 1

66行，是那一行呢？出错信息已经说明是66行的问题，你能标明这一行不