title: How to get the current user geo location in Java?
body: <p>I saw that in different web services (e.g. on Twitter or Facebook, but there also others) they are able to say what the geo location of the user is. 
  Are there any libraries in Java for this kind geolocation?</p>
  
  <p>I'm thinking about building a we service which would depend o the geo location of the user. </p>
  
  <p>Please notice that I'm not talking here about geolocation on mobile devices, I would like to get the location of the user who uses his web broawser on his/her desktoo computer.</p>