暂停ScheduledExecutorService

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public class ScheduledExecutorServicePause {
    public static void main(String[] args) throws InterruptedException {
        ScheduledExecutorService executorService = Executors.newScheduledThreadPool(1);
        CountDownLatch latch = new CountDownLatch(1);

        Runnable task = () -> {
            try {
                latch.await();
                System.out.println("Task executed");
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        };

        executorService.scheduleAtFixedRate(task, 0, 1, TimeUnit.SECONDS);

        // Pause the executor service
        latch.countDown();

        // Resume the executor service
        latch.countDown();
    }
}

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;

public class ScheduledExecutorServicePause {
    public static void main(String[] args) throws InterruptedException {
        ScheduledExecutorService executorService = Executors.newScheduledThreadPool(1);
        Semaphore semaphore = new Semaphore(1);

        Runnable task = () -> {
            try {
                semaphore.acquire();
                System.out.println("Task executed");
            } catch (InterruptedException e) {
                e.printStackTrace();
            } finally {
                semaphore.release();
            }
        };

        executorService.scheduleAtFixedRate(task, 0, 1, TimeUnit.SECONDS);

        // Pause the executor service
        semaphore.acquire();

        // Resume the executor service
        semaphore.release();
    }
}