In this project you will use object oriented programming to create a Rectangle
class and a Square
class. The Square
class should be a subclass of Rectangle
, and inherit its methods and attributes.
When a Rectangle object is created, it should be initialized with width
and height
attributes. The class should also contain the following methods:
set_width
set_height
get_area
: Returns area (width * height
)get_perimeter
: Returns perimeter (2 * width + 2 * height
)get_diagonal
: Returns diagonal ((width ** 2 + height ** 2) ** .5
)get_picture
: Returns a string that represents the shape using lines of '*'. The number of lines should be equal to the height and the number of '*' in each line should be equal to the width. There should be a new line (\n
) at the end of each line. If the width or height is larger than 50, this should return the string:'Too big for picture.'
.get_amount_inside
: Takes another shape (square or rectangle) as an argument. Returns the number of times the passed in shape could fit inside the shape (with no rotations). For instance, a rectangle with a width of 4 and a height of 8 could fit in two squares with sides of 4.
Additionally, if an instance of a Rectangle
is represented as a string, it should look like: 'Rectangle(width=5, height=10)'
.
The Square
class should be a subclass of Rectangle
. When a Square
object is created, a single side length is passed in. The __init__
method should store the side length in both the width
and height
attributes from the Rectangle
class.
The Square
class should be able to access the Rectangle
class methods but should also contain a set_side
method. If an instance of a Square
is represented as a string, it should look like: 'Square(side=9)'
.
Additionally, the set_width
and set_height
methods on the Square
class should set both the width and height.
rect = Rectangle(10, 5)
print(rect.get_area())
rect.set_height(3)
print(rect.get_perimeter())
print(rect)
print(rect.get_picture())
sq = Square(9)
print(sq.get_area())
sq.set_side(4)
print(sq.get_diagonal())
print(sq)
print(sq.get_picture())
rect.set_height(8)
rect.set_width(16)
print(rect.get_amount_inside(sq))
That code should return:
50
26
Rectangle(width=10, height=3)
**********
**********
**********
81
5.656854249492381
Square(side=4)
****
****
****
****
8
Note: open the browser console with F12 to see a more verbose output of the tests.
1. The Square
class should be a subclass of the Rectangle
class.
2. The Square
class should be a distinct class from the Rectangle
class.
3. A square object should be an instance of the Square
class and the Rectangle
class.
4. The string representation of Rectangle(3, 6)
should be 'Rectangle(width=3, height=6)'
.
5. The string representation of Square(5)
should be 'Square(side=5)'
.
6. Rectangle(3, 6).get_area()
should return 18
.
7. Square(5).get_area()
should return 25
.
8. Rectangle(3, 6).get_perimeter()
should return 18
.
9. Square(5).get_perimeter()
should return 20
.
10. Rectangle(3, 6).get_diagonal()
should return 6.708203932499369
.
11. Square(5).get_diagonal()
should return 7.0710678118654755
.
12. An instance of the Rectangle
class should have a different string representation after setting new values.
13. An instance of the Square
class should have a different string representation after setting new values by using .set_side()
.
14. An instance of the Square
class should have a different string representation after setting new values by using .set_width()
or set_height()
.
15. The .get_picture()
method should return a different string representation of a Rectangle
instance.
16. The .get_picture()
method should return a different string representation of a Square
instance.
17. The .get_picture()
method should return the string 'Too big for picture.'
if the width
or height
attributes are larger than 50
.
18. Rectangle(15,10).get_amount_inside(Square(5))
should return 6
.
19. Rectangle(4,8).get_amount_inside(Rectangle(3, 6))
should return 1
.
20. Rectangle(2,3).get_amount_inside(Rectangle(3, 6))
should return 0
.