}
// It is highly recommended that you use a credential store in your
// application to store a per-user Credential.
// See: https://code.google.com/p/google-oauth-java-client/wiki/OAuth2
DataStoreFactory storeFactory = new MemoryDataStoreFactory();
// Authorize and store your credential.
authorize(storeFactory, USER_ID);
// Create a AdWordsSession from the credential store. You will typically do this