title: setSelected a specific jradiobutton in a buttongroup based on action command
body: <p>i want to setSelected a speicfic jradiobutton in a buttongroup based on the actionCommand(/name of the specific jradiobutton).</p>
  
  <p>it could  be done usind .setSelected(true)</p>
  
  <p>for example,</p>
  
  <pre><code>JRadioButton rabbitButton = new JRadioButton("rabbit");
   rabbitButton .setActionCommand("rabbit");
  JRadioButton pigButton = new JRadioButton("pig");
   pigButton .setActionCommand("pig");
  
  ButtonGroup group = new ButtonGroup();
  
  group.add(rabbitButton);
  group.add(pigButton);
  </code></pre>
  
  <p>now.. without ,</p>
  
  <p>{ rabbitButton.setSelected(true);}  NOR  {group.setSelected(rabbitButton.getModel,true)}</p>
  
  <p>is there a way to setSelected(true) rabbitButton based on the action command()?</p>