- Creating JSON documents from java classes using gson
- startActivity (Activity)
- scheduleAtFixedRate (ScheduledExecutorService)
- requestLocationUpdates (LocationManager)
- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- Calendar (java.util)
Calendar is an abstract base class for converting between a Date object and a
set of integer fields
- NoSuchElementException (java.util)
Thrown when trying to retrieve an element past the end of an Enumeration or
Iterator.
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
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