How to play with gmail contacts?

Question

Hi Friends,
How do I get gmail contacts using gdata library? I searched gdata libary, but I couldn't find any hint.
Right now I am able to insert any contacts to my gmail id. But how can I get all my contacts in my java program?
Here is a program I am using to create new contact and insert it to my gmail id
import com.google.gdata.client.*;
import com.google.gdata.client.contacts.*;
import com.google.gdata.data.*;
import com.google.gdata.data.contacts.*;
import com.google.gdata.data.extensions.Email;
import com.google.gdata.data.extensions.ExtendedProperty;
import com.google.gdata.util.*;
import java.io.IOException;
import java.net.URL;
public class Gcontacts {
     public static ContactEntry createContact(ContactsService myService,
               String name, String notes) throws ServiceException, IOException {
          // Create the entry to insert
          ContactEntry contact = new ContactEntry();
          contact.setTitle(new PlainTextConstruct(name));
          contact.setContent(new PlainTextConstruct(notes));
          Email primaryMail = new Email();
          primaryMail.setAddress("[email protected]");
          primaryMail.setRel("http://schemas.google.com/g/2005#home");
          primaryMail.setPrimary(true);
          contact.addEmailAddress(primaryMail);
     URL postUrl = new URL("http://www.google.com/m8/feeds/contacts/[email protected]/full");
          return myService.insert(postUrl, contact);
     public static void main(String[] args) {
          ContactsService myService = new ContactsService("exampleCo-exampleApp-1");
          try {
               myService.setUserCredentials("[email protected]", "************");
               ContactEntry cobj=createContact(myService,"Harshit","Test purpose");
               System.out.println("Returned :"+cobj.toString());          
          } catch (AuthenticationException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (ServiceException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
          } catch (IOException e) {
               // TODO Auto-generated catch block
               e.printStackTrace();
}which method should I use to get all my contacts list? and Also how do I update particular contact from this kind of program?
Please help.
Thanks

Answer 1

You're probably better off finding a forum on google.com specifically dealing with their APIs.