Problem

For the GeometricObject and Circle classes in Listings 1 and 2, answer the following quest...

For the GeometricObject and Circle classes in Listings 1 and 2, answer the following questions:

a. Assume are circle and object created as follows:

Circle circle = new Circle(1);

GeometricObject object = new GeometricObject();

Are the following Boolean expressions true or false?

(circle instanceof GeometricObject)

(object instanceof GeometricObject)

(circle instanceof Circle)

(object instanceof Circle)


b. Can the following statements be compiled?

Circle circle = new Circle(5);

GeometricObject object = circle;


c. Can the following statements be compiled?

GeometricObject object = new GeometricObject();

Circle circle = (Circle)object;

Listing 1

Listing 2

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