java.io (JDK 1.6)

Package: java.io

Author(s)

Since

JDK1.0

Version

Serial

Description

Provides for system input and output through data streams, serialization and the file system.

See also:

BufferedInputStream View Source	A `BufferedInputStream` adds functionality to another input stream-namely, the ability to buffer the input and to support the `mark` and `reset` methods.
BufferedOutputStream View Source	The class implements a buffered output stream.
BufferedReader View Source	Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
BufferedWriter View Source	Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.
ByteArrayInputStream View Source	A `ByteArrayInputStream` contains an internal buffer that contains bytes that may be read from the stream.
ByteArrayOutputStream View Source	This class implements an output stream in which the data is written into a byte array.
CharArrayReader View Source	This class implements a character buffer that can be used as a character-input stream.
CharArrayWriter View Source	This class implements a character buffer that can be used as an Writer.
CharConversionException View Source	Base class for character conversion exceptions.
Closeable View Source	A `Closeable` is a source or destination of data that can be closed.
Console View Source	Methods to access the character-based console device, if any, associated with the current Java virtual machine.
DataInput View Source	The `DataInput` interface provides for reading bytes from a binary stream and reconstructing from them data in any of the Java primitive types.
DataInputStream View Source	A data input stream lets an application read primitive Java data types from an underlying input stream in a machine-independent way.
DataOutput View Source	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.
DataOutputStream View Source	A data output stream lets an application write primitive Java data types to an output stream in a portable way.
EOFException View Source	Signals that an end of file or end of stream has been reached unexpectedly during input.
Externalizable View Source	Only the identity of the class of an Externalizable instance is written in the serialization stream and it is the responsibility of the class to save and restore the contents of its instances.
File View Source	An abstract representation of file and directory pathnames.
FileFilter View Source	A filter for abstract pathnames.
FileInputStream View Source	A `FileInputStream` obtains input bytes from a file in a file system.
FilenameFilter View Source	Instances of classes that implement this interface are used to filter filenames.
FileNotFoundException View Source	Signals that an attempt to open the file denoted by a specified pathname has failed.
FileOutputStream View Source	A file output stream is an output stream for writing data to a `File` or to a `FileDescriptor`.
FilePermission View Source	This class represents access to a file or directory.
FileReader View Source	Convenience class for reading character files.
FileWriter View Source	Convenience class for writing character files.
FilterInputStream View Source	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 View Source	This class is the superclass of all classes that filter output streams.
FilterReader View Source	Abstract class for reading filtered character streams.
FilterWriter View Source	Abstract class for writing filtered character streams.
Flushable View Source	A `Flushable` is a destination of data that can be flushed.
InputStream View Source	This abstract class is the superclass of all classes representing an input stream of bytes.
InputStreamReader View Source	An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified `charset`.
InterruptedIOException View Source	Signals that an I/O operation has been interrupted.
InvalidClassException View Source	Thrown when the Serialization runtime detects one of the following problems with a Class.
InvalidObjectException View Source	Indicates that one or more deserialized objects failed validation tests.
IOError View Source	Thrown when a serious I/O error has occurred.
IOException View Source	Signals that an I/O exception of some sort has occurred.
~~LineNumberInputStream~~ View Source	This class is an input stream filter that provides the added functionality of keeping track of the current line number.
LineNumberReader View Source	A buffered character-input stream that keeps track of line numbers.
NotActiveException View Source	Thrown when serialization or deserialization is not active.
NotSerializableException View Source	Thrown when an instance is required to have a Serializable interface.
ObjectInput View Source	ObjectInput extends the DataInput interface to include the reading of objects.
ObjectInputStream View Source	An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
ObjectInputStream.GetField View Source	Provide access to the persistent fields read from the input stream.
ObjectInputValidation View Source	Callback interface to allow validation of objects within a graph.
ObjectOutput View Source	ObjectOutput extends the DataOutput interface to include writing of objects.
ObjectOutputStream View Source	An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
ObjectOutputStream.PutField View Source	Provide programmatic access to the persistent fields to be written to ObjectOutput.
ObjectStreamClass View Source	Serialization's descriptor for classes.
ObjectStreamConstants View Source	Constants written into the Object Serialization Stream.
ObjectStreamException View Source	Superclass of all exceptions specific to Object Stream classes.
ObjectStreamField View Source	A description of a Serializable field from a Serializable class.
OptionalDataException View Source	Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream.
OutputStream View Source	This abstract class is the superclass of all classes representing an output stream of bytes.
OutputStreamWriter View Source	An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified `charset`.
PipedInputStream View Source	A piped input stream should be connected to a piped output stream; the piped input stream then provides whatever data bytes are written to the piped output stream.
PipedOutputStream View Source	A piped output stream can be connected to a piped input stream to create a communications pipe.
PipedReader View Source	Piped character-input streams.
PipedWriter View Source	Piped character-output streams.
PrintStream View Source	A `PrintStream` adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
PrintWriter View Source	Prints formatted representations of objects to a text-output stream.
PushbackInputStream View Source	A `PushbackInputStream` adds functionality to another input stream, namely the ability to "push back" or "unread" one byte.
PushbackReader View Source	A character-stream reader that allows characters to be pushed back into the stream.
RandomAccessFile View Source	Instances of this class support both reading and writing to a random access file.
Reader View Source	Abstract class for reading character streams.
SequenceInputStream View Source	A `SequenceInputStream` represents the logical concatenation of other input streams.
Serializable View Source	Serializability of a class is enabled by the class implementing the java.io.Serializable interface.
SerializablePermission View Source	This class is for Serializable permissions.
StreamCorruptedException View Source	Thrown when control information that was read from an object stream violates internal consistency checks.
StreamTokenizer View Source	The `StreamTokenizer` class takes an input stream and parses it into "tokens", allowing the tokens to be read one at a time.
~~StringBufferInputStream~~ View Source	This class allows an application to create an input stream in which the bytes read are supplied by the contents of a string.
StringReader View Source	A character stream whose source is a string.
StringWriter View Source	A character stream that collects its output in a string buffer, which can then be used to construct a string.
SyncFailedException View Source	Signals that a sync operation has failed.
UnsupportedEncodingException View Source	The Character Encoding is not supported.
UTFDataFormatException View Source	Signals that a malformed string in modified UTF-8 format has been read in a data input stream or by any class that implements the data input interface.
WriteAbortedException View Source	Signals that one of the ObjectStreamExceptions was thrown during a write operation.
Writer View Source	Abstract class for writing to character streams.

Package Specification

Related Documentation