notify method wakes up only one thread waiting on the object and that thread starts execution. So if there are multiple threads waiting for an object, this method will wake up only one of them. The choice of the thread to wake depends on the OS implementation of thread management. notify方...
} catch (InterruptedException e) { Thread.currentThread().interrupt(); } } System.out.print(number); printLetter = true; lock.notifyAll(); // 唤醒其他等待中的线程 } } }); letterThread.start(); numberThread.start(); try { letterThread.join(); numberThread.join(); } catch (Interrupted...
//调用lock对象的notify()方法,唤醒同一对象监视器中调用wait的第一线程 //或者调用notifyAll()方法,唤醒同一对象监视器中调用wait的所有线程,具有最高优先级的线程首先被唤醒并执行 lock.notify(); } } } 示例代码2: package com.pinfo.test; public class ThreadTest { /** * @param args */ public sta...
线程二,主要是 notify 方法演示, 并修改字符串的值。 class ThreadB extends Thread { private WaitNotify05 waitNotify05; public ThreadB(WaitNotify05 waitNotify05) { this.waitNotify05 = waitNotify05; } @Override public void run() { synchronized (waitNotify05) { System.out.println(Thread.currentTh...
3. notify（）和wait（）-示例2 第二个示例更为复杂，请参见注释。importjava.util.Vector;classProducer extends Thread { staticfinalintMAXQUEUE = 5;privateVector messages = new Vector();publicvoidrun() { try{ while(true) { putMessage();//sleep(5000);} catch (InterruptedException e) { } pri...
下面通过一段demo来解释Wait和Notify的功能 import java.util.concurrent.TimeUnit; public class WaitNotify { public static void main(String[] args) { final Object A = new Object(); final Object B = new Object(); Thread t1 = new Thread("t1-thread") { ...
wait(),notify()notifyAll() The current thread which invokes these methods on any object should have the objectelse it throwsjava.lang.IllegalMonitorStateExceptionexception. wait notify where consumer threads are waiting for the objects in Queue and producer threads put object in queue and notify ...
Thread[NotifyThread,5,main] hold lock, notify waitThread and flag is true：流水线B准备好了配件...
调用wait 线程和 notify 线程必须拥有相同对象锁。 wait() 方法和 notify()/notifyAll() 方法必须在 Synchronized 方法或代码块中。 由于wait/notify 方法是定义在java.lang.Object中,所以在任何 Java 对象上都可以使用。 wait 方法 在执行 wait() 方法前,当前线程必须已获得对象锁。调用它时会阻塞当前线程,进入...
java.lang.Object类中提供了两个用于线程通信的方法: (1)wait():执行该方法的线程释放对象的锁,Java虚拟机把该线程放到该对象的等待池中。该线程等待其他线程将它唤醒。 (2)notify():执行该方法的线程唤醒在对象的等待池中等待的一个线程。Java虚拟机从对象的等待池中随机地选择一个线程,把它转到对象的锁池中...