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Item 72: Don't depend on the thread scheduler

1. The best way to write a robust, responsive, portable program is to ensure that the average number of runnable threads is not significantly greater than the number of processors. This leaves the th ...

thread scheduler threads priorities Thread.yield Thread.sleep

leonzhx 评论(0) 有710人浏览 2014-05-04 16:14

Java面试问题之三十四

请问Java中的静态方法Thread.yield()有何作用，它在什么时候会被使用？Thread.yield() 与Thread.sleep()这两个方法之间有些什么区别？答：当线程在运行中执行了Thread类的yield()静态方法，如果此时具有相同优先级的其他线程处于就绪状态，那么yield() 方法将把当前运行的线程放到可运行池中并使另外一个线程运行起来。如果没有相同优先级的可运行线程，则 ...