If ScheduledThreadPoolExecutor provides multiple threads

Question

Hello,
As per my understanding ScheduledThreadPoolExecutor, provides multiple threads for executing deferred and periodic tasks.
public class TimerSample {
     public static void main(String args[]){
          ScheduledThreadPoolExecutor timerNew = new ScheduledThreadPoolExecutor(10);
          timerNew.scheduleAtFixedRate(new TimerTaskSample(), 0, 10 * 1000, TimeUnit.MILLISECONDS);
class TimerTaskSample extends TimerTask{
     public void run(){
          System.out.println(Calendar.getInstance().getTimeInMillis());
          System.out.println(Thread.currentThread().getName());
          try {
               Thread.sleep(60*1000);
          } catch (Exception e) {
               e.printStackTrace();
If this is understanding is correct then I should get a System,out statement after every 10 seconds. But I am getting sys out statement after every 60 seconds.
Could you please explain this behavior

Answer 1

The multiple threads is for running multiple tasks. It doesn't make a task multi-threaded. You are right that there is no point having more threads than tasks.
For what you are trying to do you can generate tasks.
final ScheduledThreadPoolExecutor timerNew = new ScheduledThreadPoolExecutor(10);
timerNew.scheduleAtFixedRate(new Runnable() {
  public void run() {
    timerNew.submit(new TimerTaskSample());
  }}, 0, 10 * 1000, TimeUnit.MILLISECONDS);