Java多线程在同一块中等待和通知

public class WaitNotifyExample {
    public static void main(String[] args) {
        final Object lock = new Object();

        Thread waitingThread = new Thread(() -> {
            synchronized (lock) {
                try {
                    System.out.println("等待线程进入等待状态");
                    lock.wait();
                    System.out.println("等待线程被唤醒");
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        });

        Thread notifyingThread = new Thread(() -> {
            synchronized (lock) {
                System.out.println("通知线程开始唤醒等待线程");
                lock.notify();
                // lock.notifyAll(); // 唤醒所有等待线程
            }
        });

        waitingThread.start();
        try {
            Thread.sleep(1000); // 等待一段时间，确保等待线程先执行
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        notifyingThread.start();
    }
}