- Making http post requests using okhttp
- getApplicationContext (Context)
- onRequestPermissionsResult (Fragment)
- getSystemService (Context)
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- Path (java.nio.file)
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- GregorianCalendar (java.util)
GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
- Iterator (java.util)
An iterator over a sequence of objects, such as a collection.If a collection has
been changed since
- ExecutorService (java.util.concurrent)
An Executor that provides methods to manage termination and methods that can
produce a Future for tr
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