Goroutine SecondCounter and FiveSecondCounter Channel Sync

gistfile1.go

package main

import (
	"fmt"
	"time"
)

var oneDone chan bool = make(chan bool)
var fiveDone chan bool = make(chan bool)

func SecondCounter() {
	for i := 1; i <= 20; i++ {
		time.Sleep(1 * time.Second)
		fmt.Println("Second ", i)
	}
	oneDone <- true
}

func FiveSecondCounter() {
	for i := 1; i <= 4; i++ {
		time.Sleep(5 * time.Second)
		fmt.Println("FiveSecond ", i)
	}
	fiveDone <- true
}

func main() {
	go SecondCounter()
	go FiveSecondCounter()
	<-oneDone
	<-fiveDone
}