- Making http post requests using okhttp
- findViewById (Activity)
- onRequestPermissionsResult (Fragment)
- getSharedPreferences (Context)
- System (java.lang)
Provides access to system-related information and resources including standard
input and output. Ena
- UnknownHostException (java.net)
Thrown when a hostname can not be resolved.
- List (java.util)
An ordered collection (also known as a sequence). The user of this interface has
precise control ove
- Callable (java.util.concurrent)
A task that returns a result and may throw an exception. Implementors define a
single method with no
- Semaphore (java.util.concurrent)
A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
#acquire blocks if
- Container (java.awt)
A generic Abstract Window Toolkit(AWT) container object is a component that can
contain other AWT co
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