- Parsing JSON documents to java classes using gson
- addToBackStack (FragmentTransaction)
- setContentView (Activity)
- getSystemService (Context)
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- Random (java.util)
This class provides methods that return pseudo-random values.It is dangerous to
seed Random with the
- ZipFile (java.util.zip)
This class provides random read access to a zip file. You pay more to read the
zip file's central di
- HttpServlet (javax.servlet.http)
Provides an abstract class to be subclassed to create an HTTP servlet suitable
for a Web site. A sub
- Graphics2D (java.awt)
This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
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