[ask] Android Web Application with Webview

Hi, I get script Android Web Application with Webview and I get 3 file at dexelibs :

  • GoogleAdMobAdsSdk-4.3.1-8c2e99c03b3a9cc213148e0d5e9bfe97
  • GoogleAdMobAdsSdk-4.3.1-f79f212370cf92e0861513f5149ca5de
  • annotations-052a3be29a678f54c07443c36eea67f2

Can I know what is annotations and where I get it 3 file ? Please help me thanks