- Running tasks concurrently on multiple threads
- getExternalFilesDir (Context)
- getSharedPreferences (Context)
- requestLocationUpdates (LocationManager)
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- UUID (java.util)
UUID is an immutable representation of a 128-bit universally unique identifier
(UUID). There are mul
- IOUtils (org.apache.commons.io)
General IO stream manipulation utilities. This class provides static utility
methods for input/outpu
- Graphics2D (java.awt)
This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
- Menu (java.awt)
- Window (java.awt)
A Window object is a top-level window with no borders and no menubar. The
default layout for a windo
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