- Running tasks concurrently on multiple threads
- getApplicationContext (Context)
- findViewById (Activity)
- getSharedPreferences (Context)
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- Path (java.nio.file)
- SimpleDateFormat (java.text)
Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
into a String, and pa
- PriorityQueue (java.util)
A PriorityQueue holds elements on a priority heap, which orders the elements
according to their natu
- Properties (java.util)
A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
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