# Uses of Package
org.apache.commons.io.output

- Packages that use org.apache.commons.io.output
  Package | Description
  --- | ---
  org.apache.commons.io.input | Provides implementations of input classes, such as `InputStream` and `Reader`.
  org.apache.commons.io.output | Provides implementations of output classes, such as `OutputStream` and `Writer`.

- Classes in org.apache.commons.io.output used by org.apache.commons.io.input
  Class and Description
  QueueOutputStream Simple alternative to JDK `PipedOutputStream`; queue input stream provides what's written in queue output stream.

- Classes in org.apache.commons.io.output used by org.apache.commons.io.output
  Class and Description
  AbstractByteArrayOutputStream This is the base class for implementing an output stream in which the data is written into a byte array.
  AbstractByteArrayOutputStream.InputStreamConstructor Constructor for an InputStream subclass.
  BrokenOutputStream Always throws an exception from all `OutputStream` methods where `IOException` is declared.
  BrokenWriter Always throws an exception from all `Writer` methods where `IOException` is declared.
  ChunkedOutputStream OutputStream which breaks larger output blocks into chunks.
  ChunkedOutputStream.Builder Builds a new `UnsynchronizedByteArrayOutputStream`.
  ClosedOutputStream Throws an IOException on all attempts to write to the stream.
  ClosedWriter Throws an IOException on all attempts to write with `ClosedWriter.close()` implemented as a noop.
  CloseShieldOutputStream Proxy stream that prevents the underlying output stream from being closed.
  CloseShieldWriter Proxy writer that prevents the underlying writer from being closed.
  DeferredFileOutputStream An output stream which will retain data in memory until a specified threshold is reached, and only then commit it to disk.
  DeferredFileOutputStream.Builder Builds a new `DeferredFileOutputStream`.
  FileWriterWithEncoding Writer of files that allows the encoding to be set.
  FileWriterWithEncoding.Builder Builds a new `FileWriterWithEncoding`.
  FilterCollectionWriter Abstract class for writing filtered character streams to a `Collection` of writers.
  LockableFileWriter FileWriter that will create and honor lock files to allow simple cross thread file lock handling.
  LockableFileWriter.Builder Builds a new `LockableFileWriter`.
  NullAppendable Appends all data to the famous /dev/null.
  NullOutputStream Never writes data.
  NullPrintStream Never prints data.
  NullWriter Never writes data.
  ProxyCollectionWriter A Proxy stream collection which acts as expected, that is it passes the method calls on to the proxied streams and doesn't change which methods are being called.
  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.
  ProxyOutputStream.Builder Builds instances of `ProxyOutputStream`.
  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.
  RandomAccessFileOutputStream An `OutputStream` that writes to a `RandomAccessFile`.
  RandomAccessFileOutputStream.Builder Builds a new `RandomAccessFileOutputStream`.
  ThresholdingOutputStream An output stream which triggers an event on the first write that causes the total number of bytes written to the stream to exceed a configured threshold, and every subsequent write.
  UncheckedAppendable An `Appendable` that throws `UncheckedIOException` instead of `IOException`.
  UncheckedFilterOutputStream A `FilterOutputStream` that throws `UncheckedIOException` instead of `UncheckedIOException`.
  UncheckedFilterOutputStream.Builder Builds a new `UncheckedFilterOutputStream`.
  UncheckedFilterWriter A `FilterWriter` that throws `UncheckedIOException` instead of `IOException`.
  UncheckedFilterWriter.Builder Builds a new `UncheckedFilterWriter`.
  UnsynchronizedByteArrayOutputStream Implements a version of `AbstractByteArrayOutputStream` without any concurrent thread safety.
  UnsynchronizedByteArrayOutputStream.Builder Builds a new `UnsynchronizedByteArrayOutputStream`.
  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`.
  WriterOutputStream.Builder Builds a new `WriterOutputStream`.
  XmlStreamWriter Character stream that handles all the necessary work to figure out the charset encoding of the XML document written to the stream.
  XmlStreamWriter.Builder Builds a new `XmlStreamWriter`.