earthma的专栏

package com.test;public class WaitNotify { private final int CAPACITY = 10; private volatile int size = 0; private final Object lock = new Object(); private final Object consumer = new Object()

在java线程中，Runables接口的run方法不提供返回值，因此无法用来进行并发执行但有一个ExecutorCompletionService可以异步提交submit(task(Callable)),ExecutorCompletionService对Callable生成FutureTask，FutureTask完成时会执行done操作，然后ExecutorComp