title: What can I do with an enum variable?
body: <p>When I declare a enum variable like this:</p>
  
  <pre><code>enum paint_colors { RED, GREEN, BLUE, ...} colors;
  </code></pre>
  
  <p>is the <code>colors</code> variable useful? If so, what can I do with it?</p>
  
  <p>Thanks in advance.</p>