Go interfaces

msk-snippet-My snippet.go

package interface
import "fmt"

type Animal interface {
	makeSound() string
}

type Goat struct{}
type Dog struct{}

func main() {

	g := Goat{}
	d := Dog{}

	printVoice(g)
	printVoice(d)
}

func printVoice(a Animal) {

	fmt.Println(a.makeSound())

}

func (Goat) makeSound() string {
	return "Bleats"
}

func (Dog) makeSound() string {
	return "Barks"
}