title: java - about Google Calendar API v3
body: <p><a href="https://developers.google.com/google-apps/calendar/instantiate?hl=zh-CN" rel="nofollow">https://developers.google.com/google-apps/calendar/instantiate?hl=zh-CN</a></p>
  
  <pre><code>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?
  </code></pre>