- Running tasks concurrently on multiple threads
- requestLocationUpdates (LocationManager)
- setContentView (Activity)
- scheduleAtFixedRate (ScheduledExecutorService)
- Date (java.util)
A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
- HashSet (java.util)
HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
- Servlet (javax.servlet)
Defines methods that all servlets must implement. A servlet is a small Java
program that runs within
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
- IsNull (org.hamcrest.core)
Is the value null?
- Rectangle (java.awt)
A Rectangle specifies an area in a coordinate space that is enclosed by the
Rectangle object's top-
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