- Running tasks concurrently on multiple threads
- getSharedPreferences (Context)
- runOnUiThread (Activity)
- onRequestPermissionsResult (Fragment)
- File (java.io)
An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- KeyStore (java.security)
KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
- Vector (java.util)
Vector is an implementation of List, backed by an array and synchronized. All
optional operations in
- LoggerFactory (org.slf4j)
The LoggerFactory is a utility class producing Loggers for various logging APIs,
most notably for lo
- Graphics2D (java.awt)
This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
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