多线程(四）wait()notify()以及notifyAll()

Posted 2022-01-14 lbrs

六、线程得等待和唤醒

 

1.wait()和notify()的简单示范

public class Wait extends Thread
    public synchronized  void run()
    
        System.out.println(getName()+"执行notify()");
        notify();

    
    public static void main(String []args) 
        Wait w = new Wait();
        synchronized (w)
        try 
            w.start();

            System.out.println(Thread.currentThread().getName() + "等待");
            w.wait();
         catch (InterruptedException e) 
            e.printStackTrace();
        
    

    

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这程序的流程是main线程被暂停，之后w线程执行notify()方法唤醒main()