title: Enum : get the keys list
body: <p>I'm not a java developer. But I'm currently taking a look at Android applications development so I'm doing a bit of nostalgy, doing some java again after not touching it for three years.</p>
  
  <p>I'm looking forward using the "google-api-translate-java" library.<br>
  In which there is a <a href="http://code.google.com/p/google-api-translate-java/source/browse/trunk/src/com/google/api/translate/Language.java" rel="nofollow noreferrer">Language</a> class. It's an enum allowing to provide the language name and to get it's value for Google Translate.</p>
  
  <p>I can easily get all the values with :</p>
  
  <pre><code>for (Language l : values()) {
      // Here I loop on one value
  }
  </code></pre>
  
  <p>But what I'd want to get is a list of all the keys names (FRENCH, ENGLISH, ...).<br>
  Is there something like a "keys()" method that'd allow me to loop through all the enum's keys ?</p>