java - about Google Calendar API v3

Question

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?

Answer 1

仅供参考：我从Google那里得到了官方答复，他们将使用新的API（v3）来通过示例更新过时的文档和示例。