How to execute the code at particular time in java

Question

I have requirement saying that i want execute the mailing code without any event but based on timer when the specified time comes that code as to execute and the mail has to send .

package com.uttara.reg;
import java.util.TimerTask;
public class Timer extends TimerTask {
    @Override
    public void run() {
        // TODO Auto-generated method stub

    }

}

i can't understand how to call timer class

Could anybody plz help me out!!! Thanks in advance

http://stackoverflow.com/questions/6201197/run-a-java-program-in-specific-time http://stackoverflow.com/questions/2488736/run-a-program-or-method-at-specific-time-in-java — Pandiyan Cool, Oct 07 '13 at 05:25
form where to call the Timer timer = new Timer(); in servlet — user2838630, Oct 07 '13 at 06:27

score 2 · Answer 1 · answered Oct 07 '13 at 05:30

2

you can try a few things

1 : Timer class

2 : TimerTask class

3 : Quartz

4 : Cron

5 : Scheduler

or if you have a very simple requirement then

step 1 : create a thread to get time

step 2 : in the thread keep

if(time_by_thread == time_want_to_execute)
{
//execute your timer code here
}

answered Oct 07 '13 at 05:30

Hussain Akhtar Wahid 'Ghouri'

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could u plz explain me how to do with servlet – user2838630 Oct 07 '13 at 06:42
well i would suggest you search a little about web services , creating a servlet directly for your response it not considered good – Hussain Akhtar Wahid 'Ghouri' Oct 07 '13 at 06:50

score 0 · Answer 2 · answered Oct 07 '13 at 05:29

0

check out Timer and Scheduler classes.

answered Oct 07 '13 at 05:29

Alex Suo

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milind_db · Answer 3 · 2013-10-07T09:09:38.060

0

You can user Timer as follows:

    Timer timer = new Timer(); 
    timer.schedule(new TimerTask() {
       @Override
       public void run() {
       // Your code
       }
    }, your delay);

Or

// creating timer task, timer
      TimerTask tasknew = new TimerScheduleDelay();
      Timer timer = new Timer();

      // scheduling the task at interval
      timer.schedule(tasknew, 100);      
   }

   // this method performs the task
   public void run() {
      System.out.println("timer working");      
   }

This should be separated from a Java EE app server. You can use Quartz, or an operating system scheduled task, or a batch manager i.e. AutoSys, but implementing it into a servlet is not preferable and usefull to me. Java EE have a TimerService you can use that.

edited Oct 07 '13 at 09:09

answered Oct 07 '13 at 05:39

milind_db

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how to create class fro this – user2838630 Oct 07 '13 at 05:42
You dont need to create separate class for this... just go through this link: http://stackoverflow.com/questions/4044726/how-to-set-a-timer-in-java – milind_db Oct 07 '13 at 05:53
Timer timer = new Timer(); where do i create it becz am using it j2ee application – user2838630 Oct 07 '13 at 06:04
1

this link can help you: http://www.onjava.com/2004/10/13/j2ee-timers.html – milind_db Oct 07 '13 at 06:17
really i can't understand am very new to it,could u plz explain me how to do with servlet – user2838630 Oct 07 '13 at 06:43

How to execute the code at particular time in java

3 Answers3