Try It Yourself: ifs Solution

  1. Answer: The following code would be inside the Circle class: 
    public boolean contains(Point p) {
	// A point p is inside a circle if the distance between p and the
	// circle's center is less than the radius of the circle.
	return (center.distance(p) < radius);
}
  2. Answer: The following code would be outside the Circle class: 
    boolean isInside(Circle outer, Circle inner) {

	Point outerCenter = outer.getCenter();	// the outer circle's center
	Point innerCenter = inner.getCenter();	// the inner circle's center

	// The inner circle is completely inside the outer circle if:
	// 	distance between centers 
	//		+ 				< 	outer circle's radius
	//	inner circle's radius 		
	return (outerCenter.distance(innerCenter) + inner.getRadius() 
	        < outer.getRadius());
}