In the main file, you should dynamically create the instances of the Rectangles and Circles, storing pointers to the objects into the vector. When you test it out in main, loop through the vector, and print out the type of class (using the whatAmI) as well as the area, using getArea. You should get the correct values, based on the type of object at each position within the area

Pp 4.1 design and implement a class called sphere that contains instance data that represents the sphere’s diameter. define the sphere constructor to accept and initialize the diameter and include getter and setter methods for the diameter. include methods that calculate and return the volume and surface area of the sphere (see pp 3.5 for the formulas). include a tostring method that returns a one-line description of the sphere. create a driver class called multisphere, whose main method instantiates and updates several sphere objects.

It is not necessary to develop strategies to separate good information and bad information on the internet. true or false

The binary numbering system uses only two symbols—the digits 0 and 1—to represent all possible numbers. - true or false