- Running tasks concurrently on multiple threads
- addToBackStack (FragmentTransaction)
- getApplicationContext (Context)
- onRequestPermissionsResult (Fragment)
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- NumberFormat (java.text)
The abstract base class for all number formats. This class provides the
interface for formatting and
- Timer (java.util)
Timers schedule one-shot or recurring TimerTask for execution. Prefer
java.util.concurrent.Scheduled
- TimeUnit (java.util.concurrent)
A TimeUnit represents time durations at a given unit of granularity and provides
utility methods to
- IsNull (org.hamcrest.core)
Is the value null?
- Option (scala)
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