$($b$)$

$[12$ Points$]$ Ellipse class: Create a derived class representing a ellipse.

$[-]$ two private ints $($to designate the width and height of the object$).$

$[+]$ implement a single constructor that, if called with $0$ arguments, initializes a unit Rectangle at the origin $-(0,0)$ and width $=$ height $=1,$ but if called with four arguments x$,$ y$,$ w$,$ h$,$ creates a Rectangle located at $($x$,$ y$)$ with $($width$,$ height$)=($w$,$ h$).($Hint: You will need to use default arguments.$)$

Support the following operations using the given function signatures:

$[+]$ Get width, $[+]$ Get height, $[+]$ Set width, $[+]$ Set height

$[+]$ implement draw Shape function for Rectangle.

$[+]$ implement area function for Rectangle that returns the area of the object.

$($c$)[12$ Points$]$ Circle class: Create a derived class representing a circle.

$[-]$ one private ints $($to designate the radius of the circle$).$

$[+]$ implement a single constructor that, if called with $0$ arguments, initializes a unit Circle at the origin $-(0,0)$ and radius $=1,$ but if called with three arguments x$,$ y$,$r$,$ creates a Circle located at $($x$,$ y$)$ with $($radius$=$r$).$

Support the following operations using the given function signatures:

$[+]$ Get radius, $[+]$ Set radius

$[+]$ implement draw Shape function for Circle

$[+]$ implement area function for Circle that return the area of the object.