Java: How to get the time on the hour?

Question

I need to know how to get the the time. I am trying to make it run something at the top of every hour( 1:00, 2:00, 3:00, etc.). If you could help me that would be great!

Google `java get time` – Sotirios Delimanolis May 22 '13 at 18:19 — Sotirios Delimanolis, May 22 '13 at 18:19
Have you done *any* research before asking this question? – Marc Claesen May 22 '13 at 18:37 — Marc Claesen, May 22 '13 at 18:37

Audrius Meškauskas · Answer 1 · 2013-05-22T18:34:24.977

2

If you need to run something hourly use java.util.Timer:

 long hour = 1000L*3600L;
 Timer timer = new Timer();
 timer.schedule(new TimerTask() {
   public void run() {
      // Do this hourly
   }
 }, hour, hour); // first delay, period

edited May 22 '13 at 18:34

answered May 22 '13 at 18:28

Audrius Meškauskas

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score 1 · Answer 2 · answered May 22 '13 at 18:22

1

You should look at the Quartz library (a well known Java scheduler) with a cron expression like

0 0 * ? * *

( = When times matches 0 seconds, 0 minutes, any hour, every day);

answered May 22 '13 at 18:22

Arnaud Denoyelle

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Java: How to get the time on the hour?

2 Answers2