Added in API level 1

java.nio.channels

Interfaces

AsynchronousByteChannel An asynchronous channel that can read and write bytes. 
AsynchronousChannel A channel that supports asynchronous I/O operations. 
ByteChannel A channel that can read and write bytes. 
Channel A nexus for I/O operations. 
CompletionHandler<V, A> A handler for consuming the result of an asynchronous I/O operation. 
GatheringByteChannel A channel that can write bytes from a sequence of buffers. 
InterruptibleChannel A channel that can be asynchronously closed and interrupted. 
MulticastChannel A network channel that supports Internet Protocol (IP) multicasting. 
NetworkChannel A channel to a network socket. 
ReadableByteChannel A channel that can read bytes. 
ScatteringByteChannel A channel that can read bytes into a sequence of buffers. 
SeekableByteChannel A byte channel that maintains a current position and allows the position to be changed. 
WritableByteChannel A channel that can write bytes. 

Classes

AsynchronousChannelGroup A grouping of asynchronous channels for the purpose of resource sharing. 
AsynchronousFileChannel An asynchronous channel for reading, writing, and manipulating a file. 
AsynchronousServerSocketChannel An asynchronous channel for stream-oriented listening sockets. 
AsynchronousSocketChannel An asynchronous channel for stream-oriented connecting sockets. 
Channels Utility methods for channels and streams. 
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. 
MembershipKey A token representing the membership of an Internet Protocol (IP) multicast group. 
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. 
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. 

Exceptions

AcceptPendingException Unchecked exception thrown when an attempt is made to initiate an accept operation on a channel and a previous accept operation has not completed. 
AlreadyBoundException Unchecked exception thrown when an attempt is made to bind the socket a network oriented channel that is already bound. 
AlreadyConnectedException Unchecked exception thrown when an attempt is made to connect a SocketChannel that is already connected. 
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. 
CancelledKeyException Unchecked exception thrown when an attempt is made to use a selection key that is no longer valid. 
ClosedByInterruptException Checked exception received by a thread when another thread interrupts it while it is blocked in an I/O operation upon a channel. 
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. 
ClosedSelectorException Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a closed selector. 
ConnectionPendingException Unchecked exception thrown when an attempt is made to connect a SocketChannel for which a non-blocking connection operation is already in progress. 
FileLockInterruptionException Checked exception received by a thread when another thread interrupts it while it is waiting to acquire a file lock. 
IllegalBlockingModeException Unchecked exception thrown when a blocking-mode-specific operation is invoked upon a channel in the incorrect blocking mode. 
IllegalChannelGroupException Unchecked exception thrown when an attempt is made to open a channel in a group that was not created by the same provider. 
IllegalSelectorException Unchecked exception thrown when an attempt is made to register a channel with a selector that was not created by the provider that created the channel. 
InterruptedByTimeoutException Checked exception received by a thread when a timeout elapses before an asynchronous operation completes. 
NoConnectionPendingException Unchecked exception thrown when the finishConnect method of a SocketChannel is invoked without first successfully invoking its connect method. 
NonReadableChannelException Unchecked exception thrown when an attempt is made to read from a channel that was not originally opened for reading. 
NonWritableChannelException Unchecked exception thrown when an attempt is made to write to a channel that was not originally opened for writing. 
NotYetBoundException Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a server socket channel that is not yet bound. 
NotYetConnectedException Unchecked exception thrown when an attempt is made to invoke an I/O operation upon a socket channel that is not yet connected. 
OverlappingFileLockException Unchecked exception thrown when an attempt is made to acquire a lock on a region of a file that overlaps a region already locked by the same Java virtual machine, or when another thread is already waiting to lock an overlapping region of the same file. 
ReadPendingException Unchecked exception thrown when an attempt is made to read from an asynchronous socket channel and a previous read has not completed. 
ShutdownChannelGroupException Unchecked exception thrown when an attempt is made to construct a channel in a group that is shutdown or the completion handler for an I/O operation cannot be invoked because the channel group has terminated. 
UnresolvedAddressException Unchecked exception thrown when an attempt is made to invoke a network operation upon an unresolved socket address. 
UnsupportedAddressTypeException Unchecked exception thrown when an attempt is made to bind or connect to a socket address of a type that is not supported. 
WritePendingException Unchecked exception thrown when an attempt is made to write to an asynchronous socket channel and a previous write has not completed.