| Package | Description |
|---|---|
| java.io |
Provides for system input and output through data streams, serialization and the file system.
|
| java.net |
Provides the classes for implementing networking applications.
|
| java.nio.channels |
Defines channels, which represent connections to entities that are capable of performing I/O operations, such as files and sockets; defines selectors, for multiplexed, non-blocking I/O operations.
|
| java.nio.channels.spi |
Service-provider classes for the
java.nio.channels package.
|
| java.nio.file |
Defines interfaces and classes for the Java virtual machine to access files, file attributes, and file systems.
|
| java.rmi.server |
Provides classes and interfaces for supporting the server side of RMI.
|
| java.security |
Provides the classes and interfaces for the security framework.
|
| java.util |
Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
|
| java.util.jar |
Provides classes for reading and writing the JAR (Java ARchive) file format, which is based on the standard ZIP file format with an optional manifest file.
|
| java.util.zip |
Provides classes for reading and writing the standard ZIP and GZIP file formats.
|
| javax.crypto |
Provides the classes and interfaces for cryptographic operations.
|
| javax.imageio.stream |
A package of the Java Image I/O API dealing with low-level I/O from files and streams.
|
| javax.management.loading |
Provides the classes which implement advanced dynamic loading.
|
| javax.management.remote |
Interfaces for remote access to JMX MBean servers.
|
| javax.management.remote.rmi |
The RMI connector is a connector for the JMX Remote API that uses RMI to transmit client requests to a remote MBean server.
|
| javax.net.ssl |
Provides classes for the secure socket package.
|
| javax.sound.sampled |
Provides interfaces and classes for capture, processing, and playback of sampled audio data.
|
| javax.swing |
Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
|
| javax.tools |
Provides interfaces for tools which can be invoked from a program, for example, compilers.
|
| Modifier and Type | Class and Description |
|---|---|
class |
BufferedInputStream
A
BufferedInputStream adds functionality to another input stream-namely, the ability to buffer the input and to support the
mark and
reset methods.
|
class |
BufferedOutputStream
The class implements a buffered output stream.
|
class |
BufferedReader
Reads text from a character-input stream, buffering characters so as to provide for the efficient reading of characters, arrays, and lines.
|
class |
BufferedWriter
Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.
|
class |
ByteArrayInputStream
A
ByteArrayInputStream contains an internal buffer that contains bytes that may be read from the stream.
|
class |
ByteArrayOutputStream
This class implements an output stream in which the data is written into a byte array.
|
class |
CharArrayReader
This class implements a character buffer that can be used as a character-input stream.
|
class |
CharArrayWriter
This class implements a character buffer that can be used as an Writer.
|
class |
DataInputStream
A data input stream lets an application read primitive Java data types from an underlying input stream in a machine-independent way.
|
class |
DataOutputStream
A data output stream lets an application write primitive Java data types to an output stream in a portable way.
|
class |
FileInputStream
A
FileInputStream obtains input bytes from a file in a file system.
|
class |
FileOutputStream
A file output stream is an output stream for writing data to a
File or to a
FileDescriptor.
|
class |
FileReader
Convenience class for reading character files.
|
class |
FileWriter
Convenience class for writing character files.
|
class |
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.
|
class |
FilterOutputStream
This class is the superclass of all classes that filter output streams.
|
class |
FilterReader
Abstract class for reading filtered character streams.
|
class |
FilterWriter
Abstract class for writing filtered character streams.
|
class |
InputStream
This abstract class is the superclass of all classes representing an input stream of bytes.
|
class |
InputStreamReader
An InputStreamReader is a bridge from byte streams to character streams: It reads bytes and decodes them into characters using a specified
charset.
|
class |
LineNumberInputStream
Deprecated.
This class incorrectly assumes that bytes adequately represent characters. As of JDK 1.1, the preferred way to operate on character streams is via the new character-stream classes, which include a class for counting line numbers.
|
class |
LineNumberReader
A buffered character-input stream that keeps track of line numbers.
|
class |
ObjectInputStream
An ObjectInputStream deserializes primitive data and objects previously written using an ObjectOutputStream.
|
class |
ObjectOutputStream
An ObjectOutputStream writes primitive data types and graphs of Java objects to an OutputStream.
|
class |
OutputStream
This abstract class is the superclass of all classes representing an output stream of bytes.
|
class |
OutputStreamWriter
An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified
charset.
|
class |
PipedInputStream
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.
|
class |
PipedOutputStream
A piped output stream can be connected to a piped input stream to create a communications pipe.
|
class |
PipedReader
Piped character-input streams.
|
class |
PipedWriter
Piped character-output streams.
|
class |
PrintStream
A
PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.
|
class |
PrintWriter
Prints formatted representations of objects to a text-output stream.
|
class |
PushbackInputStream
A
PushbackInputStream adds functionality to another input stream, namely the ability to "push back" or "unread" one byte.
|
class |
PushbackReader
A character-stream reader that allows characters to be pushed back into the stream.
|
class |
RandomAccessFile
Instances of this class support both reading and writing to a random access file.
|
class |
Reader
Abstract class for reading character streams.
|
class |
SequenceInputStream
A
SequenceInputStream represents the logical concatenation of other input streams.
|
class |
StringBufferInputStream
Deprecated.
This class does not properly convert characters into bytes. As of JDK 1.1, the preferred way to create a stream from a string is via the
StringReader class.
|
class |
StringReader
A character stream whose source is a string.
|
class |
StringWriter
A character stream that collects its output in a string buffer, which can then be used to construct a string.
|
class |
Writer
Abstract class for writing to character streams.
|
| Modifier and Type | Class and Description |
|---|---|
class |
DatagramSocket
This class represents a socket for sending and receiving datagram packets.
|
class |
MulticastSocket
The multicast datagram socket class is useful for sending and receiving IP multicast packets.
|
class |
ServerSocket
This class implements server sockets.
|
class |
Socket
This class implements client sockets (also called just "sockets").
|
class |
URLClassLoader
This class loader is used to load classes and resources from a search path of URLs referring to both JAR files and directories.
|
| Modifier and Type | Interface and Description |
|---|---|
interface |
AsynchronousByteChannel
An asynchronous channel that can read and write bytes.
|
interface |
AsynchronousChannel
A channel that supports asynchronous I/O operations.
|
interface |
ByteChannel
A channel that can read and write bytes.
|
interface |
Channel
A nexus for I/O operations.
|
interface |
GatheringByteChannel
A channel that can write bytes from a sequence of buffers.
|
interface |
InterruptibleChannel
A channel that can be asynchronously closed and interrupted.
|
interface |
MulticastChannel
A network channel that supports Internet Protocol (IP) multicasting.
|
interface |
NetworkChannel
A channel to a network socket.
|
interface |
ReadableByteChannel
A channel that can read bytes.
|
interface |
ScatteringByteChannel
A channel that can read bytes into a sequence of buffers.
|
interface |
SeekableByteChannel
A byte channel that maintains a current
position and allows the position to be changed.
|
interface |
WritableByteChannel
A channel that can write bytes.
|
| Modifier and Type | Class and Description |
|---|---|
class |
AsynchronousFileChannel
An asynchronous channel for reading, writing, and manipulating a file.
|
class |
AsynchronousServerSocketChannel
An asynchronous channel for stream-oriented listening sockets.
|
class |
AsynchronousSocketChannel
An asynchronous channel for stream-oriented connecting sockets.
|
class |
DatagramChannel
A selectable channel for datagram-oriented sockets.
|
class |
FileChannel
A channel for reading, writing, mapping, and manipulating a file.
|
static class |
Pipe
A channel representing the writable end of a
Pipe.
|
static class |
Pipe
A channel representing the readable end of a
Pipe.
|
class |
SelectableChannel
A channel that can be multiplexed via a
Selector.
|
class |
Selector
A multiplexor of
SelectableChannel objects.
|
class |
ServerSocketChannel
A selectable channel for stream-oriented listening sockets.
|
class |
SocketChannel
A selectable channel for stream-oriented connecting sockets.
|
| Modifier and Type | Class and Description |
|---|---|
class |
AbstractInterruptibleChannel
Base implementation class for interruptible channels.
|
class |
AbstractSelectableChannel
Base implementation class for selectable channels.
|
class |
AbstractSelector
Base implementation class for selectors.
|
| Modifier and Type | Interface and Description |
|---|---|
interface |
DirectoryStream<T>
An object to iterate over the entries in a directory.
|
interface |
SecureDirectoryStream<T>
A
DirectoryStream that defines operations on files that are located relative to an open directory.
|
interface |
WatchService
A watch service that
watches registered objects for changes and events.
|
| Modifier and Type | Class and Description |
|---|---|
class |
FileSystem
Provides an interface to a file system and is the factory for objects to access files and other objects in the file system.
|
| Modifier and Type | Class and Description |
|---|---|
class |
LogStream
Deprecated.
no replacement
|
| Modifier and Type | Class and Description |
|---|---|
class |
DigestInputStream
A transparent stream that updates the associated message digest using the bits going through the stream.
|
class |
DigestOutputStream
A transparent stream that updates the associated message digest using the bits going through the stream.
|
| Modifier and Type | Class and Description |
|---|---|
class |
Formatter
An interpreter for printf-style format strings.
|
class |
Scanner
A simple text scanner which can parse primitive types and strings using regular expressions.
|
| Modifier and Type | Class and Description |
|---|---|
class |
JarFile
The
JarFile class is used to read the contents of a jar file from any file that can be opened with
java.io.RandomAccessFile.
|
class |
JarInputStream
The
JarInputStream class is used to read the contents of a JAR file from any input stream.
|
class |
JarOutputStream
The
JarOutputStream class is used to write the contents of a JAR file to any output stream.
|
| Modifier and Type | Class and Description |
|---|---|
class |
CheckedInputStream
An input stream that also maintains a checksum of the data being read.
|
class |
CheckedOutputStream
An output stream that also maintains a checksum of the data being written.
|
class |
DeflaterInputStream
Implements an input stream filter for compressing data in the "deflate" compression format.
|
class |
DeflaterOutputStream
This class implements an output stream filter for compressing data in the "deflate" compression format.
|
class |
GZIPInputStream
This class implements a stream filter for reading compressed data in the GZIP file format.
|
class |
GZIPOutputStream
This class implements a stream filter for writing compressed data in the GZIP file format.
|
class |
InflaterInputStream
This class implements a stream filter for uncompressing data in the "deflate" compression format.
|
class |
InflaterOutputStream
Implements an output stream filter for uncompressing data stored in the "deflate" compression format.
|
class |
ZipFile
This class is used to read entries from a zip file.
|
class |
ZipInputStream
This class implements an input stream filter for reading files in the ZIP file format.
|
class |
ZipOutputStream
This class implements an output stream filter for writing files in the ZIP file format.
|
| Modifier and Type | Class and Description |
|---|---|
class |
CipherInputStream
A CipherInputStream is composed of an InputStream and a Cipher so that read() methods return data that are read in from the underlying InputStream but have been additionally processed by the Cipher.
|
class |
CipherOutputStream
A CipherOutputStream is composed of an OutputStream and a Cipher so that write() methods first process the data before writing them out to the underlying OutputStream.
|
| Modifier and Type | Interface and Description |
|---|---|
interface |
ImageInputStream
A seekable input stream interface for use by
ImageReaders.
|
interface |
ImageOutputStream
A seekable output stream interface for use by
ImageWriters.
|
| Modifier and Type | Class and Description |
|---|---|
class |
FileCacheImageInputStream
An implementation of
ImageInputStream that gets its input from a regular
InputStream.
|
class |
FileCacheImageOutputStream
An implementation of
ImageOutputStream that writes its output to a regular
OutputStream.
|
class |
FileImageInputStream
An implementation of
ImageInputStream that gets its input from a
File or
RandomAccessFile.
|
class |
FileImageOutputStream
An implementation of
ImageOutputStream that writes its output directly to a
File or
RandomAccessFile.
|
class |
ImageInputStreamImpl
An abstract class implementing the
ImageInputStream interface.
|
class |
ImageOutputStreamImpl
An abstract class implementing the
ImageOutputStream interface.
|
class |
MemoryCacheImageInputStream
An implementation of
ImageInputStream that gets its input from a regular
InputStream.
|
class |
MemoryCacheImageOutputStream
An implementation of
ImageOutputStream that writes its output to a regular
OutputStream.
|
| Modifier and Type | Class and Description |
|---|---|
class |
MLet
Allows you to instantiate and register one or several MBeans in the MBean server coming from a remote URL.
|
class |
PrivateMLet
An MLet that is not added to the
ClassLoaderRepository.
|
| Modifier and Type | Interface and Description |
|---|---|
interface |
JMXConnector
The client end of a JMX API connector.
|
| Modifier and Type | Interface and Description |
|---|---|
interface |
RMIConnection
RMI object used to forward an MBeanServer request from a client to its MBeanServer implementation on the server side.
|
| Modifier and Type | Class and Description |
|---|---|
class |
RMIConnectionImpl
Implementation of the
RMIConnection interface.
|
class |
RMIConnector
A connection to a remote RMI connector.
|
class |
RMIIIOPServerImpl
An
RMIServerImpl that is exported through IIOP and that creates client connections as RMI objects exported through IIOP.
|
class |
RMIJRMPServerImpl
An
RMIServer object that is exported through JRMP and that creates client connections as RMI objects exported through JRMP.
|
class |
RMIServerImpl
An RMI object representing a connector server.
|
| Modifier and Type | Class and Description |
|---|---|
class |
SSLServerSocket
This class extends
ServerSockets and provides secure server sockets using protocols such as the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols.
|
class |
SSLSocket
This class extends
Sockets and provides secure socket using protocols such as the "Secure Sockets Layer" (SSL) or IETF "Transport Layer Security" (TLS) protocols.
|
| Modifier and Type | Class and Description |
|---|---|
class |
AudioInputStream
An audio input stream is an input stream with a specified audio format and length.
|
| Modifier and Type | Class and Description |
|---|---|
class |
ProgressMonitorInputStream
Monitors the progress of reading from some InputStream.
|
| Modifier and Type | Interface and Description |
|---|---|
interface |
JavaFileManager
File manager for tools operating on Java™ programming language source and class files.
|
interface |
StandardJavaFileManager
File manager based on
java.io.File.
|
| Modifier and Type | Class and Description |
|---|---|
class |
ForwardingJavaFileManager<M extends JavaFileManager
Forwards calls to a given file manager.
|