package chapter13;

import java.util.concurrent.CompletableFuture;

public class AllOf

{

static String color1=null;

static String color2=null;

static String color3=null;

public static void main(String[] args)

{

CompletableFuture<String> cf1

= CompletableFuture.supplyAsync( () -> {

color1 = "RED"; return null;});

CompletableFuture<String> cf2

= CompletableFuture.supplyAsync( () -> {

color2 = "GREEN"; return null;});

CompletableFuture<String> cf3

= CompletableFuture.supplyAsync( () -> {

color3 = "BLUE"; return null;});

CompletableFuture

.allOf(cf1,cf2,cf3) // CompletableFuture<Void>

.join(); // Void

System.out.println(color1 + "," + color2 + "," + color3);

}

}