polymorphism in go

polymorphism_go.go

//the terms "late binding", "dynamic binding", "polymorphism" kind of blur together for me
//here is an example of this concept in Go


package main

import "fmt"

type Animal interface {
  Say()
}

type Dog struct {  

}

func (d *Dog) Say() {
  fmt.Println("Bark")
}

func test(a Animal) {
  a.Say()
}

func main() {
 dog := new(Dog)
 test(dog)
}