Go channel

channels.go

package main

import (
	"fmt"
	"time"
)

func multiply(arg float32, c chan float32) {
	var val = arg * arg
	for i := 0; i < 10; i++ {
		fmt.Print(arg)
	    time.Sleep(100 * time.Millisecond)
	}
	fmt.Println("Done with ", arg)
	c <- val // send sum to c
}

func main() {
	channel := make(chan float32)
	go multiply(1.0, channel)
	go multiply(2.0, channel)
	x, y := <-channel, <-channel // receive from channel

	fmt.Println("\n-- D O N E --")
	fmt.Println("x", x)
	fmt.Println("y", y)
}