- Making http requests using okhttp
- addToBackStack (FragmentTransaction)
- runOnUiThread (Activity)
- putExtra (Intent)
- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- DateFormat (java.text)
Formats or parses dates and times.This class provides factories for obtaining
instances configured f
- GregorianCalendar (java.util)
GregorianCalendar is a concrete subclass of Calendarand provides the standard
calendar used by most
- Servlet (javax.servlet)
Defines methods that all servlets must implement. A servlet is a small Java
program that runs within
- JFileChooser (javax.swing)
- Github Copilot alternatives