title: Reset JComponent to default value
body: <p>For example, if component is a checkbox it must set to false, or it is a textfield it must be clear the text. I am trying to write a method for reset all components in a <code>JPanel</code>. It must work like reset function in HTML forms.</p>
  
  <p>How to reset a <code>JComponent</code> to the default value?</p>