如题,java thread yield 的设计目的是什么?有什么实际应用场景吗? Ps:它的作用是理解的,和 join 等的区别也理解.就是个人感觉这个设计有点鸡肋(可能是个人读书太少...) It is rarely appropriate to use this method. It may be useful for debugging or testing purposes, where it may help to reproduce bugs due to race conditi…
概念 我们知道 start() 方法是启动线程,让线程变成就绪状态等待 CPU 调度后执行. 那 yield() 方法是干什么用的呢?来看下源码. /** * A hint to the scheduler that the current thread is willing to yield * its current use of a processor. The scheduler is free to ignore this * hint. * * <p> Yield is a heu…
这是Java中的一种线程让步方法,让Java中的线程从执行状态变成就绪状态,然后处理器再从就绪队列中挑选线程进行执行(优先级大的,被挑选的概率较大),这种转换也不确定,让或者不让都是取决与处理器,线程可能继续占有处理器. ** * A hint to the scheduler that the current thread is willing to yield * its current use of a processor. The scheduler is free to ignore…
1. Thread.yield(): api中解释: 暂停当前正在执行的线程对象,并执行其他线程. 注意:这里的其他也包含当前线程,所以会出现以下结果. public class Test extends Thread { public static void main(String[] args) { for (int i = 1; i <= 2; i++) { new Test().start(); } } public void run() { System.out.print("1…
Thread.sleep() The current thread changes state from Running to Waiting/Blocked as shown in the diagram below. Any other thread with reference to the thread currently sleeping (say t) can interrupt it calling t.interrupt() the call to sleep has to be…
