91 lines
1.4 KiB
Go
91 lines
1.4 KiB
Go
package structs
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import (
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"fmt"
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"math"
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)
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type ShapeMetadata struct {
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Id int
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Name string
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}
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type Shape interface {
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Area() float64
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Perimeter() float64
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}
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type Square struct {
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ShapeMetadata
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Size float64
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}
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type Rectangle struct {
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ShapeMetadata
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Length, Breadth float64
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}
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type Triangle struct {
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ShapeMetadata
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A, B, C float64
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}
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func (s *Square) Area() float64 {
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return s.Size * s.Size
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}
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func (s *Square) Perimeter() float64 {
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return 4 * s.Size
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}
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func (r *Rectangle) Area() float64 {
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return r.Length * r.Breadth
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}
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func (r *Rectangle) Perimeter() float64 {
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return 2 * (r.Length + r.Breadth)
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}
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func (t *Triangle) Area() float64 {
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s := (t.A + t.B + t.C) / 2
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area := math.Sqrt(s * (s - t.A) * (s - t.B) * (s - t.C))
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return area
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}
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func (t *Triangle) Perimeter() float64 {
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return t.A + t.B + t.C
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}
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func Structs() {
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sq := Square{
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ShapeMetadata: ShapeMetadata{
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Id: 0,
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Name: "mysquare",
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},
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Size: 10.0,
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}
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rect := Rectangle{
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ShapeMetadata: ShapeMetadata{
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Id: 0,
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Name: "myrectangle",
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},
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Length: 10,
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Breadth: 5,
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}
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tri := Triangle{
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ShapeMetadata: ShapeMetadata{
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Id: 0,
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Name: "mytriangle",
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},
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A: 2,
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B: 2,
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C: 2,
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}
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fmt.Printf("Triangle: Area = %.2f Perimeter = %.2f\n", tri.Area(), tri.Perimeter())
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fmt.Printf("Rectangle: Area = %.2f Perimeter = %.2f\n", rect.Area(), rect.Perimeter())
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fmt.Printf("Square: Area = %.2f Perimeter = %.2f\n", sq.Area(), sq.Perimeter())
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}
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