Interface Article - Speaking English

speaking-english.go

package main

import (
	"fmt"
)

type Speak interface {
	SayHello() string
}

type English struct{}

func (e English) SayHello() string {
	return "Hello"
}

func main() {
	var voice Speak

	// Say Hello in English
	voice = English{}
	fmt.Println(voice.SayHello())
}