Write a class called Circle that has the following member variable:

$$ radius : a double value to hold radius of the circle.

$$ PI : a static double value to hold value of PI with an initial value of $3\mathrm{.}14159$ to be

set in the constructor. This mean that PI will be duplicated in all Circle

objects which is not good. Later, we will improve on this later.

In addition, the class should have the following constructor and member functions

$$ Constructor : Only one constructor with default value of $1$ for radius

and $3\mathrm{.}1459$ for PI

$$ Accessor $($Getter$)$ : to get value for radius. Should be a const

method.

$$ Mutator $($Setter$)$ : to set value of radius.

$$ getArea : method to return area of circle. PI$*$radius$*$radius

$$ getDiameter : method to return diameter of circle. radius$*2$

$$ getCircumference : get circumference of circle. $2*$PI$*$radius

$$ print$()$ : method to print the circle$$s radius, diameter, circumference

and area. This should be const method.

Demonstrate that your class is working by doing the following:

$$ creating two different Circle objects : one with default values and one with

a given value of radius. You should prompt user to enter this value from

keyboard.

$$ Call print method on both objects to report back the radius, diameter,

circumference and area. Clearly print heading $($in main program$)$ that

information follow is for which object?

Your Circle class declaration should be in its own Circle.h file.

Implementation of the Circle class should be in another file called Circle.cpp

Then lastly, your main$()$ function should be in a different file.