title: Android Locale Country name to Country code
body: <p>I have some country variable, "France" for example.
  I want to get the country code, in this example, I want to get "FR" or "fr".</p>
  
  <p>I tried :</p>
  
  <pre><code> Locale locale = new Locale("", "FRANCE");
   Log.e("test", locale.getCountry());
  </code></pre>
  
  <p>But it returns : </p>
  
  <pre><code> FRANCE
  </code></pre>
  
  <p>What I'm missing ?</p>
  
  <p>Thank you !</p>