两个线程交替打印1-10

AtomicInteger num = new AtomicInteger(1);
        Object lock = new  Object();
        Thread t1 = new Thread(() -> {
            synchronized(lock){
                while(num.get() <= 10){
                    if(num.get() % 2 == 1){
                        System.out.println(Thread.currentThread().getName()+ ":" + num.getAndIncrement());
                        lock.notify();
                    }else{
                        try{
                            lock.wait();
                        }catch(Exception ex){

                        }
                    }
                }
            }
        }, "a");

        Thread t2 = new Thread(() -> {
            synchronized(lock){
                while(num.get() <= 10){
                    if(num.get() % 2 == 0){
                        System.out.println(Thread.currentThread().getName()+ ":" + num.getAndIncrement());