如何检查线程是否终止？ [英] How to check if thread is terminated?

问题描述

线程何时达到已终止状态？当达到 run（）方法结束时它会被终止吗？

when does a thread reach the terminated status? Does it get terminated when the end of the run() method is reached?

那么正确的方法是什么？检查线程是否被终止？因为以下情况似乎总是适合我

So what is the right way to check if a thread is terminated? Because following condition seems to be true always for me

if(!(thread.getState()).equals("TERMINATED")){}

任何想法？

推荐答案

首先： Thread.getState（） 返回 Thread.State ，它永远不会等于字符串，所以你需要编写这样的代码：

First: Thread.getState() returns a Thread.State, which will never be equal to a String, so you'd need to write that code like this:

if(thread.getState()!=Thread.State.TERMINATED){ }

是的：当 run（）方法结束（正常或因为它抛出异常），然后 Thread 将转到 TERMINATED 州。

And yes: when the run() method ends (either normally or because it throws an exception), then a Thread will go to the TERMINATED state.

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