# Uses of Package
java.nio.channels

- Packages that use java.nio.channels
  Package | Description
  --- | ---
  java.io | Provides for system input and output through data streams, serialization and the file system.
  java.lang | Provides classes that are fundamental to the design of the Java programming language.
  java.net | Provides the classes for implementing networking applications.
  java.nio.channels | Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
  java.nio.channels.spi | Service-provider classes for the ``java.nio.channels`` package.
  java.util | Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).

- Classes in java.nio.channels used by java.io
  Class and Description
  FileChannel A channel for reading, writing, mapping, and manipulating a file.

- Classes in java.nio.channels used by java.lang
  Class and Description
  Channel A nexus for I/O operations.

- Classes in java.nio.channels used by java.net
  Class and Description
  DatagramChannel A selectable channel for datagram-oriented sockets.
  ServerSocketChannel A selectable channel for stream-oriented listening sockets.
  SocketChannel A selectable channel for stream-oriented connecting sockets.

- Classes in java.nio.channels used by java.nio.channels
  Class and Description
  AsynchronousCloseException Checked exception received by a thread when another thread closes the channel or the part of the channel upon which it is blocked in an I/O operation.
  ByteChannel A channel that can read and write bytes.
  Channel A nexus for I/O operations.
  ClosedChannelException Checked exception thrown when an attempt is made to invoke or complete an I/O operation upon channel that is closed, or at least closed to that operation.
  DatagramChannel A selectable channel for datagram-oriented sockets.
  FileChannel A channel for reading, writing, mapping, and manipulating a file.
  FileChannel.MapMode A typesafe enumeration for file-mapping modes.
  FileLock A token representing a lock on a region of a file.
  GatheringByteChannel A channel that can write bytes from a sequence of buffers.
  InterruptibleChannel A channel that can be asynchronously closed and interrupted.
  Pipe A pair of channels that implements a unidirectional pipe.
  Pipe.SinkChannel A channel representing the writable end of a `Pipe`.
  Pipe.SourceChannel A channel representing the readable end of a `Pipe`.
  ReadableByteChannel A channel that can read bytes.
  ScatteringByteChannel A channel that can read bytes into a sequence of buffers.
  SelectableChannel A channel that can be multiplexed via a `Selector`.
  SelectionKey A token representing the registration of a `SelectableChannel` with a `Selector`.
  Selector A multiplexor of `SelectableChannel` objects.
  ServerSocketChannel A selectable channel for stream-oriented listening sockets.
  SocketChannel A selectable channel for stream-oriented connecting sockets.
  WritableByteChannel A channel that can write bytes.

- Classes in java.nio.channels used by java.nio.channels.spi
  Class and Description
  AsynchronousCloseException Checked exception received by a thread when another thread closes the channel or the part of the channel upon which it is blocked in an I/O operation.
  Channel A nexus for I/O operations.
  ClosedChannelException Checked exception thrown when an attempt is made to invoke or complete an I/O operation upon channel that is closed, or at least closed to that operation.
  DatagramChannel A selectable channel for datagram-oriented sockets.
  InterruptibleChannel A channel that can be asynchronously closed and interrupted.
  Pipe A pair of channels that implements a unidirectional pipe.
  SelectableChannel A channel that can be multiplexed via a `Selector`.
  SelectionKey A token representing the registration of a `SelectableChannel` with a `Selector`.
  Selector A multiplexor of `SelectableChannel` objects.
  ServerSocketChannel A selectable channel for stream-oriented listening sockets.
  SocketChannel A selectable channel for stream-oriented connecting sockets.

- Classes in java.nio.channels used by java.util
  Class and Description
  ReadableByteChannel A channel that can read bytes.

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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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