- Making http requests using okhttp
- startActivity (Activity)
- findViewById (Activity)
- getSharedPreferences (Context)
- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- GregorianCalendar (java.util)
GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
- Handler (java.util.logging)
A Handler object accepts a logging request and exports the desired messages to a
target, for example
- Base64 (org.apache.commons.codec.binary)
Provides Base64 encoding and decoding as defined by RFC 2045.This class
implements section 6.8. Base
- IOUtils (org.apache.commons.io)
General IO stream manipulation utilities. This class provides static utility
methods for input/outpu
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