title: How do I get which JRadioButton is selected from a ButtonGroup
body: <p>I have a swing application that includes radio buttons on a form. I have the <code>ButtonGroup</code>, however, looking at the available methods, I can't seem to get the name of the selected <code>JRadioButton</code>. Here's what I can tell so far:</p>
  
  <ul>
  <li><p>From ButtonGroup, I can perform a <code>getSelection()</code> to return the <code>ButtonModel</code>. From there, I can perform a <code>getActionCommand</code>, but that doesn't seem to always work.  I tried different tests and got unpredictable results.</p></li>
  <li><p>Also from <code>ButtonGroup</code>, I can get an Enumeration from <code>getElements()</code>.  However, then I would have to loop through each button just to check and see if it is the one selected.</p></li>
  </ul>
  
  <p>Is there an easier way to find out which button has been selected?  I'm programing this in Java 1.3.1 and Swing.</p>