Uses of Package
java.io

Packages that use java.io

Package	Description
java.io	Contains Input/Output streams communication classes.
java.lang	Contains core language classes.
java.lang.annotation	Contains core language classes related to compile-time annotations.
java.security	Contains core language classes related to permission management.
java.util	Contains utility classes including the collections framework and date manipulation.

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.
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.
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.
Serializable This interface is only defined for hierarchy compatibility.
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.
Serializable This interface is only defined for hierarchy compatibility.
UnsupportedEncodingException The Character Encoding is not supported.

Classes in java.io used by java.lang.annotation

Class and Description
Serializable This interface is only defined for hierarchy compatibility.

Classes in java.io used by java.security

Class and Description
Serializable This interface is only defined for hierarchy compatibility.

Classes in java.io used by java.util

Class and Description
Serializable This interface is only defined for hierarchy compatibility.