thread test

Java Concurrency task

// Update to get Worker-0 -> Worker-1 -> Worker-0... order

public class Main {
    public static void main(String[] args) {
        new Thread(new Worker()).start();
        new Thread(new Worker()).start();
    }

    static class Worker implements Runnable {
        @Override
        public void run() {
            for (int i = 0; i < 10; i++) {
                System.out.println(Thread.currentThread().getName());
            }
        }
    }
}

// answer
public class Main {
    public static void main(String[] args) {
        new Thread(new Worker()).start();
        new Thread(new Worker()).start();
    }

    static class Worker implements Runnable {
        @Override
        public void run() {
            synchronized(Worker.class) {
                for (int i = 0; i < 10; i++) {
                    try {
                        Worker.class.notifyAll();
                        System.out.println(Thread.currentThread().getName());
                        Worker.class.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                Worker.class.notifyAll();
            }
        }
    }
}