Uses of Package
java.io

Packages that use java.io

Package	Description
java.io	Provides for system input and output through data streams and the file system.
java.lang	Provides classes that are fundamental to the design of the Java programming language.
java.net	Provides exceptions related to socket connections.
java.nio.channels	Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files.
java.nio.file	Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.
java.util	Contains the collections framework, legacy collection classes, event model, date and time facilities, random-number generator, and miscellaneous utility classes.
java.util.logging	Provides the classes and interfaces of the CLDC platform's core logging facilities.

Classes in java.io used by java.io

Class and Description
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.
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.
Reader Abstract class for reading character streams.
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.
UnsupportedEncodingException The Character Encoding is not supported.

Classes in java.io used by java.net

Class and Description
IOException Signals that an I/O exception of some sort has occurred.

Classes in java.io used by java.nio.channels

Class and Description
Closeable A Closeable is a source or destination of data that can be closed.
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.

Classes in java.io used by java.nio.file

Class and Description
Closeable A Closeable is a source or destination of data that can be closed.
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.

Classes in java.io used by java.util

Class and Description
Closeable A Closeable is a source or destination of data that can be closed.
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.
Reader Abstract class for reading character streams.
Writer Abstract class for writing to character streams.

Classes in java.io used by java.util.logging

Class and Description
OutputStream This abstract class is the superclass of all classes representing an output stream of bytes.
UnsupportedEncodingException The Character Encoding is not supported.