title: propertyChangeListeners chain reacting, causing overflow
body: <p>Just a snippet of code.  Doing a project for class where I have to convert Celsius, Fahrenheit and Kelvin based on a change to their respective <code>JFormattedTextFields</code>.  The problem is that when the <code>listener</code> reacts to the change in Celsius, my program changes Fahrenheit, which then reacts to my Fahrenheit listener, which reacts my Celsius listener again, and so on.  I haven't worked in my Kelvin stuff yet due to this problem.  I doubt my code is needed, since this is more of a conceptual problem, but here it is anyway:</p>
  
  <pre><code>private class ValueChangeHandler implements PropertyChangeListener
  {
      public void propertyChange(PropertyChangeEvent event) 
      {
  
          Object celsiusChange = event.getSource();
          Object fahrenheitChange = event.getSource();
          Object kelvinChange = event.getSource();
          if(celsiusChange == celsiusField)
          {
  
              tempCelsius = (Double)celsiusField.getValue();
              tempFahrenheit = celToFah(tempCelsius);
              tempKelvin = celToKel(tempCelsius);
              fahrenheitField.setValue(tempFahrenheit);
              kelvinField.setValue(tempKelvin);
  
          }
  
          else if(fahrenheitChange == fahrenheitField)
          {
  
              tempFahrenheit = (Double)fahrenheitField.getValue();
              tempCelsius = fahToCel(tempFahrenheit);
              tempKelvin = fahToKel(tempFahrenheit);
              celsiusField.setValue(tempCelsius);
              kelvinField.setValue(tempKelvin);
  
      }
  }
  </code></pre>