Changes for page Code Example: Data Structure Style vs. Object Style

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...	...	@@ -1,59 +1,1 @@
1		-### Use Cases
2		-
3		-This example is intended to demonstrate the extensibility differences between data structures and objects by extending them with
4		-
5		-1. an Area() function (extending behavior)
6		-1. a rectangle type (extending data type)
7		-
8		-### Data Structure Style
9		-
10		- struct Square {
11		- length float
12		- }
13		-
14		- struct Circle {
15		- radius float
16		- }
17		-
18		- function Circumference(g Object) float {
19		- switch type(g):
20		- case Square:
21		- return 4 * g.length
22		- case Circle:
23		- return 2 * PI * g.radius
24		- }
25		-
26		-1. Adding a function Area() with the same anatomy as Circumference() is easy, since it only requires adding new code.
27		-1. Adding a new datatype, Rectangle, is more difficult because it requires touching existing code, namely any functions like Circumference() or Area() that need to be enabled handle this datatype.
28		-
29		-####
30		-
31		-#### Object-Oriented Style
32		-
33		- interface GeometricObject {
34		- Circumference() float
35		- }
36		-
37		- class Square implements GeometricObject {
38		- length float
39		-
40		- constructor(length float) {
41		- this.length = length
42		- }
43		-
44		- func Circumference() float {
45		- return 4 * this.length
46		- }
47		- }
48		-
49		- class Circle implements GeometricObject {
50		- radius float
51		-
52		- constructor(radius float) {
53		- this.radius = radius
54		- }
55		-
56		- func Circumference() float {
57		- return 2 * PI * this.radius
58		- }
59		- }
	1	+```