# Package org.apache.commons.io.output

This package provides implementations of output classes, such as `OutputStream` and `Writer`.

See: Description

Class Summary
AppendableOutputStream<T extends Appendable>: OutputStream implementation that writes the data to an `Appendable` Object.
BrokenOutputStream: Broken output stream.
ByteArrayOutputStream: This class implements an output stream in which the data is written into a byte array.
ChunkedOutputStream: OutputStream which breaks larger output blocks into chunks.
ChunkedWriter: Writer which breaks larger output blocks into chunks.
ClosedOutputStream: Closed output stream.
CloseShieldOutputStream: Proxy stream that prevents the underlying output stream from being closed.
CountingOutputStream: A decorating output stream that counts the number of bytes that have passed through the stream so far.
DeferredFileOutputStream: An output stream which will retain data in memory until a specified threshold is reached, and only then commit it to disk.
DemuxOutputStream: Forwards data to a stream that has been associated with this thread.
FileWriterWithEncoding: Writer of files that allows the encoding to be set.
LockableFileWriter: FileWriter that will create and honor lock files to allow simple cross thread file lock handling.
NullOutputStream: This OutputStream writes all data to the famous /dev/null.
NullWriter: This `Writer` writes all data to the famous /dev/null.
ProxyOutputStream: A Proxy stream which acts as expected, that is it passes the method calls on to the proxied stream and doesn't change which methods are being called.
ProxyWriter: A Proxy stream which acts as expected, that is it passes the method calls on to the proxied stream and doesn't change which methods are being called.
StringBuilderWriter: `Writer` implementation that outputs to a `StringBuilder`.
TaggedOutputStream: An output stream decorator that tags potential exceptions so that the stream that caused the exception can easily be identified.
TeeOutputStream: Classic splitter of OutputStream.
ThresholdingOutputStream: An output stream which triggers an event when a specified number of bytes of data have been written to it.
WriterOutputStream: `OutputStream` implementation that transforms a byte stream to a character stream using a specified charset encoding and writes the resulting stream to a `Writer`.
XmlStreamWriter: Character stream that handles all the necessary Voodoo to figure out the charset encoding of the XML document written to the stream.

## Package org.apache.commons.io.output Description

This package provides implementations of output classes, such as `OutputStream` and `Writer`.