Java programming question: Consider the inheritance hierarchy in the figure on the next page.

Java programming question:

Consider the inheritance hierarchy in the figure on the next page. The top of the hierarchy begins with class Shape, which is extended by subclasses TwoDShape and ThreeDShape, corresponding to 2D and 3D shapes, respectively. The third level of this hierarchy contains specific types of 2D and 3D shapes such as circles and spheres, respectively. The arrows in the graph represent