title: How to set some days on Calendar.DAY_OF_WEEK
body: <p>I need to set some days in method set. I try to use:</p>
  
  <pre><code>c.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
  c.set(Calendar.DAY_OF_WEEK, Calendar.WEDNESDAY);
  </code></pre>
  
  <p>but with this way set only Wednesday.</p>
  
  <p>Thank you and sorry for my english :) </p>