阻塞对列

阻塞对列的4种用法 LinkedBlockingDeque /ArrayBlockingQueue
类型 阻塞 直接返回 抛异常 等待超时退出
添加 put offer add offer
删除 take poll remove poll

线程池：

ThreadPoolExecutor threadPoolExecutor = new ThreadPoolExecutor(2,
        5,
        2,
        TimeUnit.SECONDS,
        new LinkedBlockingQueue<Runnable>(3),
        Executors.defaultThreadFactory(),
        new ThreadPoolExecutor.AbortPolicy()
);
threadPoolExecutor.execute(()->{
    System.out.println("test");
});