- Running tasks concurrently on multiple threads
- startActivity (Activity)
- setScale (BigDecimal)
- onRequestPermissionsResult (Fragment)
- HttpServer (com.sun.net.httpserver)
This class implements a simple HTTP server. A HttpServer is bound to an IP
address and port number a
- ServerSocket (java.net)
This class represents a server-side socket that waits for incoming client
connections. A ServerSocke
- Charset (java.nio.charset)
A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
- Calendar (java.util)
Calendar is an abstract base class for converting between a Date object and a
set of integer fields
- ResourceBundle (java.util)
ResourceBundle is an abstract class which is the superclass of classes which
provide Locale-specifi
- Pattern (java.util.regex)
Patterns are compiled regular expressions. In many cases, convenience methods
such as String#matches
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