# Uses of Package
java.io

- Packages that use java.io
  Package | Description
  --- | ---
  java.beans |
  java.io |
  java.lang |
  java.lang.annotation |
  java.lang.invoke |
  java.lang.reflect | Provides classes and interfaces for obtaining reflective information about classes and objects.
  java.math | Provides classes for performing arbitrary-precision integer arithmetic (`BigInteger`) and arbitrary-precision decimal arithmetic (`BigDecimal`).
  java.net |
  java.nio.charset |
  java.security |
  java.text |
  java.util |
  java.util.concurrent | Utility classes commonly useful in concurrent programming.
  java.util.concurrent.atomic | A small toolkit of classes that support lock-free thread-safe programming on single variables.
  java.util.concurrent.locks | Interfaces and classes providing a framework for locking and waiting for conditions that is distinct from built-in synchronization and monitors.
  java.util.logging |
  java.util.regex | Classes for matching character sequences against patterns specified by regular expressions.
  java.util.stream | Classes to support functional-style operations on streams of elements, such as map-reduce transformations on collections.
  org.apidesign.bck2brwsr.launcher.impl |
  org.apidesign.vm4brwsr |
  org.apidesign.vm4brwsr.api |
  org.openide.util | Client API part of the Lookup interfaces.
  org.openide.util.lookup | Support classes for the Registration and `Lookup` extension mechanism.

- Classes in java.io used by java.beans
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.io
  Class and Description
  BufferedReader Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
  Closeable A `Closeable` is a source or destination of data that can be closed.
  DataInput The `DataInput` interface provides for reading bytes from a binary stream and reconstructing from them data in any of the Java primitive types.
  DataOutput The `DataOutput` interface provides for converting data from any of the Java primitive types to a series of bytes and writing these bytes to a binary stream.
  File An abstract representation of file and directory pathnames.
  FileDescriptor Instances of the file descriptor class serve as an opaque handle to the underlying machine-specific structure representing an open file, an open socket, or another source or sink of bytes.
  FileFilter A filter for abstract pathnames.
  FilenameFilter Instances of classes that implement this interface are used to filter filenames.
  FileNotFoundException Signals that an attempt to open the file denoted by a specified pathname has failed.
  FilterInputStream A `FilterInputStream` contains some other input stream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.
  FilterOutputStream This class is the superclass of all classes that filter output streams.
  Flushable A `Flushable` is a destination of data that can be flushed.
  InputStream This abstract class is the superclass of all classes representing an input stream of bytes.
  InputStreamReader An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified ``charset``.
  InvalidObjectException Indicates that one or more deserialized objects failed validation tests.
  IOException Signals that an I/O exception of some sort has occurred.
  NotActiveException Thrown when serialization or deserialization is not active.
  ObjectInput ObjectInput extends the DataInput interface to include the reading of objects.
  ObjectInputStream.GetField Provide access to the persistent fields read from the input stream.
  ObjectInputValidation Callback interface to allow validation of objects within a graph.
  ObjectOutput ObjectOutput extends the DataOutput interface to include writing of objects.
  ObjectOutputStream.PutField Provide programmatic access to the persistent fields to be written to ObjectOutput.
  ObjectStreamClass Serialization's descriptor for classes.
  ObjectStreamConstants Constants written into the Object Serialization Stream.
  ObjectStreamException Superclass of all exceptions specific to Object Stream classes.
  ObjectStreamField A description of a Serializable field from a Serializable class.
  OutputStream This abstract class is the superclass of all classes representing an output stream of bytes.
  OutputStreamWriter An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified ``charset``.
  PrintStream A `PrintStream` adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
  PrintWriter Prints formatted representations of objects to a text-output stream.
  Reader Abstract class for reading character streams.
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  StreamCorruptedException Thrown when control information that was read from an object stream violates internal consistency checks.
  StringWriter A character stream that collects its output in a string buffer, which can then be used to construct a string.
  SyncFailedException Signals that a sync operation has failed.
  UnsupportedEncodingException The Character Encoding is not supported.
  Writer Abstract class for writing to character streams.

- Classes in java.io used by java.lang
  Class and Description
  InputStream This abstract class is the superclass of all classes representing an input stream of bytes.
  IOException Signals that an I/O exception of some sort has occurred.
  PrintStream A `PrintStream` adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
  PrintWriter Prints formatted representations of objects to a text-output stream.
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  UnsupportedEncodingException The Character Encoding is not supported.

- Classes in java.io used by java.lang.annotation
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.lang.invoke
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.lang.reflect
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.math
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.net
  Class and Description
  InputStream This abstract class is the superclass of all classes representing an input stream of bytes.
  IOException Signals that an I/O exception of some sort has occurred.
  OutputStream This abstract class is the superclass of all classes representing an output stream of bytes.
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.nio.charset
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.security
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.text
  Class and Description
  InvalidObjectException Indicates that one or more deserialized objects failed validation tests.
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.util
  Class and Description
  InputStream This abstract class is the superclass of all classes representing an input stream of bytes.
  IOException Signals that an I/O exception of some sort has occurred.
  OutputStream This abstract class is the superclass of all classes representing an output stream of bytes.
  PrintStream A `PrintStream` adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
  PrintWriter Prints formatted representations of objects to a text-output stream.
  Reader Abstract class for reading character streams.
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
  Writer Abstract class for writing to character streams.

- Classes in java.io used by java.util.concurrent
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.util.concurrent.atomic
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.util.concurrent.locks
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.util.logging
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.util.regex
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by java.util.stream
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by org.apidesign.bck2brwsr.launcher.impl
  Class and Description
  IOException Signals that an I/O exception of some sort has occurred.
  UnsupportedEncodingException The Character Encoding is not supported.

- Classes in java.io used by org.apidesign.vm4brwsr
  Class and Description
  InputStream This abstract class is the superclass of all classes representing an input stream of bytes.
  IOException Signals that an I/O exception of some sort has occurred.
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by org.apidesign.vm4brwsr.api
  Class and Description
  IOException Signals that an I/O exception of some sort has occurred.

- Classes in java.io used by org.openide.util
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

- Classes in java.io used by org.openide.util.lookup
  Class and Description
  Serializable Serializability of a class is enabled by the class implementing the java.io.Serializable interface.

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