- Making http requests using okhttp
- findViewById (Activity)
- startActivity (Activity)
- getContentResolver (Context)
- InetAddress (java.net)
An Internet Protocol (IP) address. This can be either an IPv4 address or an IPv6
address, and in pra
- ServerSocket (java.net)
This class represents a server-side socket that waits for incoming client
connections. A ServerSocke
- SocketException (java.net)
This SocketException may be thrown during socket creation or setting options,
and is the superclass
- Connection (java.sql)
A connection represents a link from a Java application to a database. All SQL
statements and results
- Dictionary (java.util)
Note: Do not use this class since it is obsolete. Please use the Map interface
for new implementatio
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
- Top 12 Jupyter Notebook extensions