Scheduler JOB in java

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package com..scheduler;

import static org.quartz.CronScheduleBuilder.dailyAtHourAndMinute;
import java.util.Calendar;
import org.quartz.Job;
import org.quartz.JobBuilder;
import org.quartz.JobDetail;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.quartz.Scheduler;
import org.quartz.SchedulerException;
import org.quartz.Trigger;
import org.quartz.TriggerBuilder;
import org.quartz.impl.StdSchedulerFactory;


public class SchedulerTest implements Job {

    public static void main(String[] args) {

        int HOUR_OF_DAY = Integer.parseInt("20");
        int MINUTE_OF_HOUR = Integer.parseInt("10");


        Trigger trigger1 = TriggerBuilder.newTrigger().withIdentity("test trigger1", "group1").withSchedule(dailyAtHourAndMinute(08, 00)).build();
        Trigger trigger2 = TriggerBuilder.newTrigger().withIdentity("test trigger2", "group1").withSchedule(dailyAtHourAndMinute(20, 01)).build();
        Trigger trigger3 = TriggerBuilder.newTrigger().withIdentity("test trigger3", "group1").withSchedule(dailyAtHourAndMinute(23, 10)).build();

        try {
            Scheduler scheduler = new StdSchedulerFactory().getScheduler();
            scheduler.start();

            JobDetail job1 = JobBuilder.newJob(NewsLetterSchedulerTest.class).withIdentity("test job1", "group1").build();
            scheduler.scheduleJob(job1, trigger1);

            JobDetail job2 = JobBuilder.newJob(NewsLetterSchedulerTest.class).withIdentity("test job2", "group1").build();
            scheduler.scheduleJob(job2, trigger2);

            JobDetail job3 = JobBuilder.newJob(NewsLetterSchedulerTest.class).withIdentity("test job3", "group1").build();
            scheduler.scheduleJob(job3, trigger3);

        } catch (SchedulerException e) {
            e.printStackTrace();
        } catch (Throwable e) {
            e.printStackTrace();
        }
    }
public boolean getValue(){
  System.out.println("Simple Method invoked from Scheduler");
return true;
}
    @Override
    public void execute(JobExecutionContext context) throws JobExecutionException {
        SchedulerTest  scheduler=new SchedulerTest ();
scheduler.getValue();
    }
}

PS: Make sure that required jars your have to add to run above code

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