Class:

Name: Circle

Purpose: To accept and store the data for a circle and to provide functions that will manipulate the data.

Constructor:

$$ Zero$-$argument constructor that initializes the data members to$.$ Data Members:

$$ radius $$ int Must be $1\mathrm{.}0$ or greater.

$$ colorFill $$ string Cannot be blank.

Functions:

$$ calcDiameter$()-$ double Calculates and returns the diameter of the circle. The diameter is a double.

$$ calcArea$()-$ double Calculates and returns the area of the circle. The area is a double.

$$ calcCircumference$()-$ double Calculates and returns the circumference of the circle. The circumference is a double.

$$ setRadius$()-$ void Accepts a radius value and updates the radius data member.

$$ getRadius$()-$ int Returns the value stored in the radius data member.

$$ setColorFill$()-$ void Accepts the fill color value and updates the colorFill data member.

$$ getColorFill$()-$ string Returns the value stored in the colorFill data member.

Note: Setters and Getters are required even if they are not used.

Non$-$Class Functions:

$$ displayCircleInfo$()$ void Creates and displays the formatted output of the book shipment information. Do a Google search for C$++$ setw$(),$ left, right for how to use these functions$/$commands to create easy to read formatted output.

Formulas:

$$ Note: The calc functions are returning a double, and the radius is an integer. The simplest way to convert an int to a double is to multiply the radius by $1\mathrm{.}0.$ Example: double myDiameter; myDiameter $=($getRadius $*1\mathrm{.}0)*2$;

$$ Area $=$ Pi $*$ radius squared For Pi$,$ use the value of $3\mathrm{.}14$ so your results will match mine. You can make this a const using the following line of code in the Circle.cpp file above the constructor const double PI $=3\mathrm{.}14$; Data Members:

$$ radius $$ int Must be $1\mathrm{.}0$ or greater.

$$ colorFill $$ string Cannot be blank.

Functions:

$$ calcDiameter$()-$ double Calculates and returns the diameter of the circle. The diameter is a double.

$$ calcArea$()-$ double Calculates and returns the area of the circle. The area is a double.

$$ calcCircumference$()-$ double Calculates and returns the circumference of the circle. The circumference is a double.

$$ setRadius$()-$ void Accepts a radius value and updates the radius data member.

$$ getRadius$()-$ int Returns the value stored in the radius data member.

$$ setColorFill$()-$ void Accepts the fill color value and updates the colorFill data member.

$$ getColorFill$()-$ string Returns the value stored in the colorFill data member.

Note: Setters and Getters are required even if they are not used.

Non$-$Class Functions:

$$ displayCircleInfo$()$ void Creates and displays the formatted output of the book shipment information. Do a Google search for C$++$ setw$(),$ left, right for how to use these functions$/$commands to create easy to read formatted output.

Formulas:

$$ Note: The calc functions are returning a double, and the radius is an integer. The simplest way to convert an int to a double is to multiply the radius by $1\mathrm{.}0.$ Example: double myDiameter; myDiameter $=($getRadius $*1\mathrm{.}0)*2$;

$$ Area $=$ Pi $*$ radius squared For Pi$,$ use the value of $3\mathrm{.}14$ so your results will match mine. You can make this a const using the following line of code in the Circle.cpp file above the constructor const double PI $=3\mathrm{.}14$;

For radius squared, use the pow$()$ function instead of getRadius$()*$ getRadius$()$ Example: pow$(4,2)$ is $4$ squared where $4$ is the value of the radius, and $2$ is the power to raise the radius to$,$ in this case, squared. Use the getRadius$()$ function to get the radius value.

$$ Circumference $=2*$ PI $*$ radius

$$ Diameter $=2*$ radius

The class should use appropriate protection levels for the member data and functions. Data members must be in the private: section. It must also follow $$principles of minimalization$$: that is$,$ no data member should be part of a class unless most functions of the object need it$.$ A general rule of thumb is that $$if you can easily calculate it$,$ don$$t store it$.$

Program Flow:

$$ Start a loop that goes until the user enters $-1$ for the radius.

$$ Create the Circle object using the zero argument constructor.

$$ Prompt the user for the radius. If the user enters $-1,$ exit the loop, otherwise, update the Circle object with the value entered.

$$ Prompt the user for the fill color and update the Circle object with the value entered.

$$ Display the Circle information using a separate function. This function will call the Circle object functions defined in the class.

$$ Pause the display so the user can read the displayed information.

Your program should allow the user to enter new circle radius until the user enters $-1$ for the radius. Be sure to include appropriate error checking. Does it make sense to enter $$abc$$ as the radius of a circle? No$.$ Therefore, you should ensure the user enters numeric data for the side. Negative numbers $($other than the