等待多个任务都完成 -多任务组合/-allOf/-anyOf

allOf：等待所有任务完成
anyOf：只要有一个任务完成

public class CompletableFutureDemo05 {
    private static ThreadPoolExecutor executor=new ThreadPoolExecutor(5,
            50, 
            10,
            TimeUnit.SECONDS, 
            new LinkedBlockingQueue<>(),
            Executors.defaultThreadFactory(),
           new  ThreadPoolExecutor.AbortPolicy());
    //运行时发现 线程会阻塞 等待新的任务去调度
    
    /**
     * 
     * @throws ExecutionException
     * @throws InterruptedException
     */
    public static void main(String[] args) throws Exception {
        CompletableFuture<Integer> future1 = CompletableFuture.supplyAsync(() -> {
            System.out.println("线程1开始了" + Thread.currentThread().getName());
            int i = 100 / 10;
            System.out.println("线程1结束了" + Thread.currentThread().getName());
            return i;
        }, executor);
    
        CompletableFuture<Integer> future2 = CompletableFuture.supplyAsync(() -> {
            System.out.println("线程2开始了" + Thread.currentThread().getName());
            int i = 100 / 5;
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println("线程2结束了" + Thread.currentThread().getName());
            return i;
        }, executor);
    
        CompletableFuture<Integer> future3 = CompletableFuture.supplyAsync(() -> {
            System.out.println("线程3开始了" + Thread.currentThread().getName());
            int i = 100 / 5;
        
            System.out.println("线程3结束了" + Thread.currentThread().getName());
            return i;
        }, executor);
    
        CompletableFuture<Object> anyOf = CompletableFuture.anyOf(future1, future2, future3);
        anyOf.get();
        System.out.println("主任务执行完成...... " +anyOf.get());
        
        CompletableFuture<Void> allOf = CompletableFuture.allOf(future1, future2, future3);
        allOf.get();//需要调用get方法阻塞  等待所有任务执行完成
        System.out.println("主任务执行完成...... " +future1.get()+":"+future2.get()+":"+future3.get());
    
       
    }
}