https://developers.google.com/google-apps/calendar/instantiate?hl=zh-CN
I would like to use Google Calendar API v3, but in this example, I can't find these libraries:
import com.google.api.client.auth.oauth2.draft10.AccessTokenResponse;
import com.google.api.client.googleapis.auth.oauth2.draft10.GoogleAccessProtectedResource;
import com.google.api.client.googleapis.auth.oauth2.draft10.GoogleAccessTokenRequest.GoogleAuthorizationCodeGrant;
import com.google.api.client.googleapis.auth.oauth2.draft10.GoogleAuthorizationRequestUrl;
Perhaps they are too old and deprecated? and where can I get the latest examples for authorization codes?