concurrent "Hello World" in Golang

helloworld.go

package main

import "fmt"

/*
  concurrent hello world
*/

func main() {
	sayHello := make(chan bool)
	sayWorld := make(chan bool)
	finished := make(chan bool)

	go func() {
		<-sayWorld
		fmt.Println("World")
		finished <- true
	}()

	go func() {
		<-sayHello
		fmt.Print("Hello ")
		sayWorld <- true
	}()

	sayHello <- true // kick off
	<-finished       // wait until done
}