class Circle {

    private double x;
    private double y;
    private double r;

    public Circle(double x, double y, double r) {
        this.x = x;
        this.y = y;
        this.r = r;
    }

    public double area() {
        return Math.PI * this.r * this.r;
    }

    public static double area(double r) {
        return Math.PI * r * r;
    }

}
@@ -185,32 +185,145 @@
 s.r = r;%0A    %7D%0A%0A
+    public static Circle createCircle(double x, double y, double r) %7B%0A        return new Circle(x, y, r);%0A    %7D%0A%0A
     public doubl

create static factory method for circle