- Running tasks concurrently on multiple threads
- requestLocationUpdates (LocationManager)
- scheduleAtFixedRate (Timer)
- onRequestPermissionsResult (Fragment)
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- Locale (java.util)
Locale represents a language/country/variant combination. Locales are used to
alter the presentatio
- Queue (java.util)
A collection designed for holding elements prior to processing. Besides basic
java.util.Collection o
- Point (java.awt)
A point representing a location in (x,y) coordinate space, specified in integer
precision.
- 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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