- Running tasks concurrently on multiple threads
- scheduleAtFixedRate (ScheduledExecutorService)
- findViewById (Activity)
- getSupportFragmentManager (FragmentActivity)
- File (java.io)
An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
- Timer (java.util)
Timers schedule one-shot or recurring TimerTask for execution. Prefer
java.util.concurrent.Scheduled
- Semaphore (java.util.concurrent)
A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
#acquire blocks if
- FileUtils (org.apache.commons.io)
General file manipulation utilities. Facilities are provided in the following
areas: * writing to a
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
- Graphics2D (java.awt)
This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
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