public class TestCyclic {
    @Test
    public void test01() {
        int count = 10000;//併發執行緒數
        CyclicBarrier cyclicBarrier = new CyclicBarrier(count);
        ExecutorService executorService = Executors.newFixedThreadPool(count);
        int n = 0;
        for (int i = 0; i < count; i++) {

            executorService.execute(new
 
 TestCyclic().new Task(cyclicBarrier, n));
            n++;
        }
        executorService.shutdown(); // 關閉執行緒池
        // 判斷是否所有的執行緒已經執行完
        while (!executorService.isTerminated()) {
            try {
                // 所有執行緒池中的執行緒執行完畢，執行後續操作
                // TODO
                System.out.println("==============is sleep============"
 
);
                Thread.sleep(10000);
                System.out.println("==============is wake============");

            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    public class Task implements Runnable {
        private CyclicBarrier cyclicBarrier;
        int
 
 n = 0;

        public Task(CyclicBarrier cyclicBarrier, int n) {
            this.cyclicBarrier = cyclicBarrier;
            this.n = n;
        }

        @Override
        public void run() {
            try {
                // 等待所有任務準備就緒
                System.out.println("賽馬" + n + "到達柵欄前");
                cyclicBarrier.await();
                System.out.println("賽馬" + n + "開始跑");
                // 測試內容
                System.out.println("hello: " + n);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}