title: Cron Job sixth parameter in Java
body: <p>I am very new to Java. As my first project, I am going to work with cron job scheduler. I want some clarification on scheduling. I have a code which will run every hour.</p>
  
  <pre><code>  CronTrigger ct = new CronTrigger("cronTrigger", "group2", "0 1/0 * * * ?"); 
  </code></pre>
  
  <p>I have read the documents about scheduling, but I got confused </p>
  
  <p>In one document i have read like in the below </p>
  
  <pre><code> ("0 0 * * * ?") 
  </code></pre>
  
  <ul>
  <li>1st 0 indicates seconds</li>
  <li>2nd indicates mins</li>
  <li>3rd hour</li>
  <li>4th which day of the month</li>
  <li>5th which month.</li>
  </ul>
  
  <p>In some document I read that 1st indicates mins 2nd - hour etc.</p>
  
  <p>Can anyone please explain me this(0 1/0 * * * ?) and also what it means (1/0)?</p>
  
  <p>And I want to run a job in every six hours. </p>
  
  <p>If i give like this (<code>0 */6 * * * ?</code>) whether it will run in every six hours?</p>