Java多线程笔记1--wait、notify

wait、notify学习小记。
一个不是太合适的场景：顾客等饭吃、厨子做饭、厨子做好饭并停止做饭、顾客吃饭、顾客吃完饭接着等饭吃、厨子接着做饭………

也不知道这段代码对不对

 
final Object lock = new Object();
Thread customerThread = new Thread(new Runnable() {
    @Override
    public void run() {
        synchronized (lock) {
            try {
                lock.wait();
            } catch (Exception ex) {

            }
        }
        while (true) {
            synchronized (lock) {
                try {
                    System.out.println("顾客吃完了，厨师可以继续做饭..............");
                    lock.notify();
                    lock.wait();
                } catch (Exception ex) {

                }
            }
        }
    }
});
Thread cookThread = new Thread(new Runnable() {
    @Override
    public void run() {
        while (true) {
            synchronized (lock) {
                System.out.println("厨师做好了，顾客可以吃了，暂停做饭");
                lock.notify();
                try {
                    lock.wait();
                } catch (Exception ex) {

                }
            }
        }
    }
});
customerThread.start();
cookThread.start();

场景这样可能这样更合适：客人来了、客人点菜、客人等上菜、厨师做菜、厨师做好菜停止做菜、客人吃菜、客人吃完菜并走人、客人来了…………..

也不知道这段代码对不对

final Object lock = new Object();
Thread customerThread = new Thread(new Runnable() {
@Override
public void run() {
    while (true) {
        synchronized (lock) {
            System.out.println("来客人了，客人点菜、等吃菜");
            try {
                lock.notify();
                lock.wait();
                Thread.sleep(1000);
                System.out.println("客人吃完菜、走人");
            } catch (Exception ex) {

            }
        }
    }
}
});
Thread cookThread = new Thread(new Runnable() {
@Override
public void run() {
    try {
        lock.wait();
    } catch (Exception ex) {

    }
    while (true) {
        System.out.println("厨师开始做菜");
        synchronized (lock) {
            try {
                Thread.sleep(1000);
            } catch (Exception ex) {

            }
            System.out.println("厨师做好了，客人可以吃了，暂停做菜");
            lock.notify();
            try {
                lock.wait();
            } catch (Exception ex) {

            }
        }
    }
}
});
customerThread.start();
cookThread.start();