- Running tasks concurrently on multiple threads
- addToBackStack (FragmentTransaction)
- scheduleAtFixedRate (Timer)
- getSharedPreferences (Context)
- OutputStream (java.io)
A writable sink for bytes.Most clients will use output streams that write data
to the file system (
- URLConnection (java.net)
A connection to a URL for reading or writing. For HTTP connections, see
HttpURLConnection for docume
- MessageDigest (java.security)
Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
- SecureRandom (java.security)
This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- ServletException (javax.servlet)
Defines a general exception a servlet can throw when it encounters difficulty.
- Top 12 Jupyter Notebook extensions