Changes for page Code Example: Data Structure Style vs. Object Style
Last modified by chrisby on 2024/03/03 17:01
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... ... @@ -1,30 +1,30 @@ 1 - ### Data Structure Style1 +asd 2 2 3 - type Square struct { 4 - length float 5 - } 6 - 7 - type Circle struct { 8 - radius float 9 - } 10 - 11 - func Circumference(g Object) float { 12 - switch type(g): 13 - case Square: 14 - return 4 * g.length 15 - case Circle: 16 - return 2 * PI * g.radius 17 - } 3 +``` 4 +type Square struct { 5 + length float 6 +} 18 18 19 -* 8 +type Circle struct { 9 + length float 10 +} 20 20 12 +func Area(g GeometricObject) float { 13 + switch (g.type()): 14 + case Circle: 15 + return 16 + case Square: 17 + return ... 18 +} 19 + 20 +func Circumference(g GeometricObject) float { 21 + ... 22 +} 23 +``` 24 + 21 21 #### Object-Oriented Style 22 22 23 - interface GeometricObject { 24 - Circumference() float 25 - } 26 - 27 - class Square implements GeometricObject { 27 + class Square { 28 28 length float 29 29 30 30 constructor(length float) { ... ... @@ -31,12 +31,16 @@ 31 31 this.length = length 32 32 } 33 33 34 + func Area() float { 35 + return this.length * this.length 36 + } 37 + 34 34 func Circumference() float { 35 35 return 4 * this.length 36 36 } 37 37 } 38 38 39 - class Circle implements GeometricObject{43 + class Circle { 40 40 radius float 41 41 42 42 constructor(radius float) { ... ... @@ -43,6 +43,10 @@ 43 43 this.radius = radius 44 44 } 45 45 50 + func Area() float { 51 + return PI * this.radius * this.radius 52 + } 53 + 46 46 func Circumference() float { 47 47 return 2 * PI * this.radius 48 48 }