title: How to get cron expression given job name and group name?
body: <p>I'm using Quartz Scheduler v.1.8.0.</p>
  
  <p>How do I get the cron expression which was assigned/attached to a Job and scheduled using <a href="http://www.quartz-scheduler.org/docs/api/1.8.1/org/quartz/CronTrigger.html" rel="noreferrer">CronTrigger</a>?  I have the job name and group name in this case.  Though many Triggers can point to the same Job, in my case it is only one.</p>
  
  <p>There is a method available in Scheduler class, <a href="http://quartz-scheduler.org/api/2.1.5/org/quartz/Scheduler.html#getTriggersOfJob(org.quartz.JobKey)" rel="noreferrer">Scheduler.getTriggersOfJob(jobName, groupName)</a>, but it returns only <em>Trigger</em> array.</p>
  
  <p>Example cronexpression: <code>0 /5 10-20 * * ?</code></p>
  
  <p><strong>NOTE:</strong> Class <em>CronTrigger</em> extends <em>Trigger</em></p>