title: Add PropertyChangeListener to JComboBox
body: <p>How do I use <code>PropertyChangeListener</code> with <code>JComboBox</code>? When I write in editable <code>JComboBox</code>, I get the text written immediately because I changed the icon of the arrow button of the combobox; and key listeners aren't working any more.
  This is what I tried, but I don't know how to complete:</p>
  
  <pre><code>editor = (JTextComponent) jComboBox1.getEditor().getEditorComponent();
  
  editor.addPropertyChangeListener(new PropertyChangeListener()
  {
      @Override
      public void propertyChange(PropertyChangeEvent evt) 
      {
  
      }       
  
  });
  </code></pre>