I develop an app with android studio. I took the SDK for Java in my libraries. If i test with "Hello World" - ExampleCode, i get the Error : "Didn't find class "javax.swing.event.EventListenerList". It is used in the "ApiCredential"-Class. I can't find "javax.swing" in Android Studio. Is there another librarie for Android Studio? Is there a Tutorial for AndroidStudio or ExcampleCode? How can i sove it?