Java 如何正确使用ScheduledExecutorService？

所以这是我第一次使用ScheduledFuture，我承认我在这里可能有点不知所措。我似乎无法使下面的示例正常工作。我们的目标只是在继续下一组动作并无限期重复之前，采取两组动作，每个动作都有自己的超时时间

static ScheduledExecutorService executor = Executors.newScheduledThreadPool(2);
ScheduledFuture<?> warm = executor.scheduleWithFixedDelay(() -> {
      System.out.println("warmbeans");
      //do more stuff here
}, 0, 1000, TimeUnit.MILLISECONDS);
ScheduledFuture<?> cool = executor.scheduleWithFixedDelay(() -> {
      System.out.println("coolbeans");
      //do more stuff here
}, 0, 500, TimeUnit.MILLISECONDS);

while(true) {
    try {warm.get(1000, TimeUnit.MILLISECONDS);}
    catch (InterruptedException | ExecutionException | TimeoutException e) {Listen.cancel(true);}

    try {cool.get(500, TimeUnit.MILLISECONDS);}
    catch (InterruptedException | ExecutionException | TimeoutException e) {Listen.cancel(true);}

上面提到的NetworkIO.java:29行只是：

try {warm.get(1000, TimeUnit.MILLISECONDS);}

try {warm.get(1000, TimeUnit.MILLISECONDS);}