- Running tasks concurrently on multiple threads
- startActivity (Activity)
- addToBackStack (FragmentTransaction)
- runOnUiThread (Activity)
- ObjectMapper (com.fasterxml.jackson.databind)
ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
- Set (java.util)
A Set is a data structure which does not allow duplicate elements.
- UUID (java.util)
UUID is an immutable representation of a 128-bit universally unique identifier
(UUID). There are mul
- Servlet (javax.servlet)
Defines methods that all servlets must implement. A servlet is a small Java
program that runs within
- HttpServlet (javax.servlet.http)
Provides an abstract class to be subclassed to create an HTTP servlet suitable
for a Web site. A sub
- BorderLayout (java.awt)
A border layout lays out a container, arranging and resizing its components to
fit in five regions:
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