ความแตกต่างระหว่าง scheduleThread pool และ Single Thread Executor

ตัวอย่าง ScheduledThreadPool

public class ScheduledThreadPoolExample {
   public static void main(String args[]) {
      ScheduledExecutorService services = Executors.newScheduledThreadPool(10);
      services.schedule(new Task(), 10, TimeUnit.SECONDS);
      services.scheduleAtFixedRate(new Task(), 15, 10, TimeUnit.SECONDS);
      //(new Thread(new Main())).start();
   }
}
public class Task implements Runnable {
   @Override
   public void run() {
      System.out.println("In Run");
   }
}

ตัวอย่าง SingleThreadExecutor

public class Main {
   public static void main(String args[]) {
      ExecutorService services = Executors.newSingleThreadExecutor();
      Future<?> future = services.submit(new Task());
   }
}
public class Task implements Runnable {
   @Override
   public void run() {
      System.out.println("In Run");
   }
}