Monday, September 30, 2013

Run TimerTask in scheduled, repeated fixed-rate.

Example to trigger scheduled, repeated fixed-rate TimerTask, by calling timer.scheduleAtFixedRate().

Run TimerTask in scheduled, repeated fixed-rate.
Run TimerTask in scheduled, repeated fixed-rate.


package java_time;

import java.util.Calendar;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

/**
* @web http://java-buddy.blogspot.com/
*/
public class Java_Time {

public static void main(String[] args) {

Calendar calendar = Calendar.getInstance();
Date calendarDate = calendar.getTime();
System.out.println("Now: " + calendarDate);

Calendar cal_1min = Calendar.getInstance();
cal_1min.add(Calendar.MINUTE, 1);
Date date_1min = cal_1min.getTime();
System.out.println("1 min later: " + date_1min);


TimerTask timeTask = new TimerTask(){

@Override
public void run() {
Calendar timerNow = Calendar.getInstance();
Date timerNowDate = timerNow.getTime();
System.out.println("Timer reached: " + timerNowDate);
}

};

Timer timer = new Timer();

//One time only
//timer.schedule(timeTask, date_1min);

//Trigger scheduled, repeated fixed-rate TimerTask
timer.scheduleAtFixedRate(
timeTask, //task to be scheduled
date_1min, //First time at which task is to be executed
5000); //repeat period, in milliseconds
}
}


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