How to use the Google API to translate from code

I am trying to create an application that will send a word to translate.google.com, take the translation result and show it to the user. I made up a url but don't know how to extract a word / phrase from a webpage.

Example pseudo: en - code for English and es - code for Spanish

String from = "en";
String to = "es";
String word = "hello"; //this will be user input text really
String URL = "http://www.translate.google.com/#" + from + "/" + to + "/" + word;

      

        
        
        
      

    

Therefore the request url will look like http://www.translate.google.com/#en/es/hello

Now I need to get information from the results window and put it in a string so that I can display it to the user.