阻塞队列是Java5线程新特征中的内容，Java定义了阻塞队列的接口java.util.concurrent.BlockingQueue，阻塞队列的概念是，一个指定长度的队列，如果队列满了，添加新元素的操作会被阻塞等待，直到有空位为止。同样，当队列为空时候，请求队列元素的操作同样会阻塞等待，直到有可...

Java线程：新特征-阻塞栈

对于阻塞栈，与阻塞队列相似。不同点在于栈是“后入先出”的结构，每次操作的是栈顶，而队列是“先进先出”的结构，每次操作的是队列头。这里要特别说明一点的是，阻塞栈是Java6的新特征。、 Java为阻塞栈定义了接口：java.util.concurrent.Blocking...

Java线程：新特征-有返回值的线程

在Java5之前，线程是没有返回值的，常常为了“有”返回值，破费周折，而且代码很不好写。或者干脆绕过这道坎，走别的路了。现在Java终于有可返回值的任务（也可以叫做线程）了。可返回值的任务必须实现Callable接口，类似的，无返回值的任务必须Runnable接口。 ...

Java线程：新特征-信号量

Java的信号量实际上是一个功能完毕的计数器，对控制一定资源的消费与回收有着很重要的意义，信号量常常用于多线程的代码中，并能监控有多少数目的线程等待获取资源，并且通过信号量可以得知可用资源的数目等等，这里总是在强调“数目”二字，但不能指出来有哪些在等待，哪些资源可用。因此，本人认为，...

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更新时间 2024-03-03 00:02:11

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