title: Is it possible to have hidden data for each item in the list?
body: <p>JComponents can obtain hidden data using <code>setName()</code> and <code>getName()</code>, right? What about JComboBox items? (I'm referring to the <strong>items</strong> in the JComboBox, NOT the JComboBox itself)</p>
  
  <p>What if I have a JComboBox, and inside it I have a list of usernames (for example), now I want to have something like 'id' for each username in the list according to how they are ordered, what's the best way to do this?</p>