- Creating JSON documents from java classes using gson
- getContentResolver (Context)
- compareTo (BigDecimal)
- getSystemService (Context)
- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
- FileInputStream (java.io)
An input stream that reads bytes from a file.
File file = ...finally
if (in != null)
in.clos
- BigInteger (java.math)
An immutable arbitrary-precision signed integer.FAST CRYPTOGRAPHY
This implementation is efficient f
- 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
- Date (java.util)
A specific moment in time, with millisecond precision. Values typically come
from System#currentTime
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