- Making http post requests using okhttp
- findViewById (Activity)
- getSupportFragmentManager (FragmentActivity)
- onRequestPermissionsResult (Fragment)
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
- Proxy (java.net)
This class represents proxy server settings. A created instance of Proxy stores
a type and an addres
- SecureRandom (java.security)
This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- GregorianCalendar (java.util)
GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
- List (java.util)
An ordered collection (also known as a sequence). The user of this interface has
precise control ove
- ZipFile (java.util.zip)
This class provides random read access to a zip file. You pay more to read the
zip file's central di
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