package com.how2java;

import static org.quartz.JobBuilder.newJob;
import static org.quartz.SimpleScheduleBuilder.simpleSchedule;
import static org.quartz.TriggerBuilder.newTrigger;

import org.quartz.JobDetail;
import org.quartz.Scheduler;
import org.quartz.Trigger;
import org.quartz.impl.StdSchedulerFactory;

public class TestQuartz {
	public static void main(String[] args) throws Exception{
            // Create scheduler 
            Scheduler scheduler = StdSchedulerFactory.getDefaultScheduler();

            // Define a trigger 
            Trigger trigger = newTrigger().withIdentity("trigger1", "group1") // Define the name and the group to which you belong 
                .startNow()
                .withSchedule(simpleSchedule() 
                    .withIntervalInSeconds(2) // Every 2 Execute once per second 
                    .withRepeatCount(10)) // A total of 11 second ( The first execution does not )
                .build();

            // Define a JobDetail
            JobDetail job = newJob(MailJob.class) // Specify the working class MailJob
                .withIdentity("mailjob1", "mailgroup") // Define task names and groups 
                .usingJobData("email", "[email protected]") // Define properties 
                .build();
            
            // Dispatch to join this job
            scheduler.scheduleJob(job, trigger);

            // Start 
            scheduler.start();
            
            // wait for 20 second , After all the previous tasks are completed , Then close the scheduler 
            Thread.sleep(20000);
            scheduler.shutdown(true);
	}
}

package com.how2java;

import java.text.SimpleDateFormat;
import java.util.Date;

import org.quartz.Job;
import org.quartz.JobDetail;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;

public class MailJob implements Job {
    public void execute(JobExecutionContext context) throws JobExecutionException {
        JobDetail detail = context.getJobDetail();
        String email = detail.getJobDataMap().getString("email");
        
        SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
        String now = sdf.format(new  Date());
        
        System.out.printf(" Give the email address  %s  Sent a regular email ,  The current time is : %s%n" ,email, now);
    }
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">

  <appender name="default" class="org.apache.log4j.ConsoleAppender">
    <param name="target" value="System.out"/>
    <layout class="org.apache.log4j.PatternLayout">
      <param name="ConversionPattern" value="[%p] %d{dd MMM hh:mm:ss.SSS aa} %t [%c]%n%m%n%n"/>
    </layout>
  </appender>

 <logger name="com.how2java">
   <level value="error" />
 </logger>

  <root>
    <level value="error" />
    <appender-ref ref="default" />
  </root>

</log4j:configuration>