Java - 多线程并发包下常用类 Future CountDownLatch CyclicBarrier SemaphoreFuture、FutureTask和CompletableFutureCountDownLatchCyclicBarrierSemaphore
文章目录Future、FutureTask和CompletableFutureFutureFutureTaskCompletableFutureCountDownLatchCyclicBarrierSemaphoreFuture、FutureTask和CompletableFutureFuture平时在使用多线程的时候, 是拿不到线程返回值的, 当需要拿到返回值时,需要实现Callable来获取Callable接口定义public interface Callable<V&