在java中的线程实例上调用wait() [英] Calling wait() on Thread instance in java

问题描述

如果我们在 Thread 类的实例上调用 wait() 方法会发生什么.

What will happen if we call wait() method on instance of Thread class.

Thread t1 = new MyThread();
t1.wait();

我的线程 t1 的状态是什么?

What will be the state of my thread t1?

推荐答案

这将与您调用 wait() 之前相同.wait() 是java.lang.Object 的一个方法.它等待与对象关联的内部监视器.在这种情况下，对象是一个线程，这不会改变 wait() 的作用.不过，使用 Thread 对象作为监视器非常奇怪.您应该使用私有和最终对象作为监视器.

It will be the same as before your call to wait(). wait() is a method of java.lang.Object. It waits on the intrinsic monitor associated to the object. In that case, the object is a thread, and that doesn't change what wait() does. It's pretty bizarre to use a Thread object as a monitor, though. You should use a private and final object as monitor.

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