In a section of code from an example Program I am trying to run I encounter an error at this FOR statement.
 

for (User user : users) {
       System.out.println(user.getName());
     }

I am unfamiliar of what the colon is being  used for and why it is throwing an error.

The source of this example program is
http://straylink.wordpress.com/2008/06/03/logging-in-with-facebook-java-api/


            The Full code for the sketch is as follows
//---------------------------------------------------------------------------
import com.google.code.facebookapi.*;

public class FacebookClient {    
 public static String API_KEY = "ENTER YOUR API KEY";
 public static String SECRET = "ENTER YOUR SECRET";

 public static void main(String args[]) {

   // Create the client instance

   FacebookRestClient client =       new FacebookRestClient(API_KEY, SECRET);

   client.setIsDesktop(true); // is this a desktop app

   try {

     String token = client.auth_createToken();

     // Build the authentication URL for the user to fill out

     String url = "http://www.facebook.com/login.php?api_key="

               + API_KEY + "&v=1.0"

               + "&auth_token=" + token;

     // Open an external browser to login to your application

     Runtime.getRuntime().exec("open " + url); // OS X only!

     // Wait until the login process is completed

     System.out.println("Use browser to login then press return");

     System.in.read();


     // fetch session key

     String session = client.auth_getSession(token,true );

     // obtain temp secret

     String tempSecret = client.getSessionSecret();

     // new facebook client object

     client = new FacebookJaxbRestClient(API_KEY, tempSecret, sessionKey);


     System.out.println("Session key is " + session);


     // keep track of the logged in user id

     Long userId = client.users_getLoggedInUser();

     System.out.println("Fetching friends for user " + userId);


     // Get friends list

     client.friends_get();

     FriendsGetResponse response = (FriendsGetResponse) client.getResponsePOJO();

     List<Long> friends = response.getUid();


     // Go fetch the information for the user list of user ids

    client.users_getInfo(friends, EnumSet.of(ProfileField.NAME));


    UsersGetInfoResponse userResponse = (UsersGetInfoResponse) client.getRepsonsePOJO();

     // Print out the user information

     List<User> users = userResponse.getUser();

     for (User user : users) {

       System.out.println(user.getName());

     }

   } catch (FacebookException e) {

     // TODO Auto-generated catch block

     e.printStackTrace();

   } catch (IOException e) {

     // TODO Auto-generated catch block

     e.printStackTrace();

   }

 }

}

Or put such code in a .java tab.