Java "unstopped "执行/完成线程

Question

我有一个关于线程的问题。当我这样做时:

new Thread(new Runnable(){

        @Override
        public void run() {
            //sth to do
        }

    }).start();

当 run() 中的所有代码都被执行时会发生什么？是系统自动删除线程还是线程还留在内存中？

谢谢和问候

Answer 1

当线程完成其run() 方法时，它将进入'死' 状态。然后堆栈中的下一个线程在之后运行。

死状态:

"A thread is considered dead when its run() method completes. It may still be a viable Thread object, but it is no longer a separate thread of execution. Once a thread is dead, it can never be brought back to life! (The whole "I see dead threads" thing.) If you invoke start() on a dead Thread instance, you'll get a runtime (not compiler) exception. And it probably doesn't take a rocket scientist to tell you that if a thread is dead, it is no longer considered to be alive."