go example of blocking buffered channels in go

concurrent.go

package main

import "fmt"
import "time"

func write(channel chan int) {
	for i := 0; i < 5; i++ {
		channel <- i
		fmt.Println("successfully wrote", i, "to channel")
	}
	close(channel)
}

func main() {
	ch := make(chan int, 2)
	go write(ch)
	time.Sleep(2 * time.Second)
	
	for v := range ch {
		fmt.Println("read value", v, "from channel")
		time.Sleep(2 * time.Second)
	}
}