- Running tasks concurrently on multiple threads
- getSystemService (Context)
- onCreateOptionsMenu (Activity)
- notifyDataSetChanged (ArrayAdapter)
- FileInputStream (java.io)
An input stream that reads bytes from a file.
File file = ...finally
if (in != null)
in.clos
- InputStreamReader (java.io)
A class for turning a byte stream into a character stream. Data read from the
source input stream is
- InetAddress (java.net)
An Internet Protocol (IP) address. This can be either an IPv4 address or an IPv6
address, and in pra
- MessageDigest (java.security)
Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
- 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
- Top 12 Jupyter Notebook extensions