- Running tasks concurrently on multiple threads
- scheduleAtFixedRate (ScheduledExecutorService)
- orElseThrow (Optional)
Return the contained value, if present, otherwise throw an exception to be
created by the provided s
- getResourceAsStream (ClassLoader)
- HttpServer (com.sun.net.httpserver)
This class implements a simple HTTP server. A HttpServer is bound to an IP
address and port number a
- SQLException (java.sql)
An exception that indicates a failed JDBC operation. It provides the following
information about pro
- HashMap (java.util)
HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
- Scanner (java.util)
A parser that parses a text string of primitive types and strings with the help
of regular expressio
- SortedMap (java.util)
A map that has its keys ordered. The sorting is according to either the natural
ordering of its keys
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
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