notify 的使用

public class NotifyTest {
    public synchronized void testWait(){
        System.out.println(Thread.currentThread().getName() +" Start-----");
        try {
            wait();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(Thread.currentThread().getName() +" End-------");
    }

    public static void main(String[] args) throws InterruptedException {
        final NotifyTest test = new NotifyTest();
//        创建五个线程取运行对象的方法
        for(int i=0;i<5;i++) {
            new Thread(new Runnable() {
                @Override
                public void run() {
                    test.testWait();
                }
            }).start();
        }

        //通知一个 线程
        synchronized (test) {
            test.notify();
        }
        Thread.sleep(3000);
        System.out.println("-----------分割线-------------");
        //通知所有线程
        synchronized (test) {
            test.notifyAll();
        }
    }
}