- Running tasks concurrently on multiple threads
- getSupportFragmentManager (FragmentActivity)
- runOnUiThread (Activity)
- getApplicationContext (Context)
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- UnknownHostException (java.net)
Thrown when a hostname can not be resolved.
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- Base64 (org.apache.commons.codec.binary)
Provides Base64 encoding and decoding as defined by RFC 2045.This class
implements section 6.8. Base
- Graphics2D (java.awt)
This Graphics2D class extends the Graphics class to provide more sophisticated
control overgraphics
- ImageIO (javax.imageio)
- Top 12 Jupyter Notebook extensions