| Package | Description | 
|---|---|
| java.applet | 
 Provides the classes necessary to create an applet and the classes an applet
uses to communicate with its applet context. 
 | 
| java.awt | 
 Contains all of the classes for creating user
interfaces and for painting graphics and images. 
 | 
| java.beans.beancontext | 
 Provides classes and interfaces relating to bean context. 
 | 
| java.io | 
 Provides for system input and output through data streams,
serialization and the file system. 
 | 
| java.lang | 
 Provides classes that are fundamental to the design of the Java
 programming language. 
 | 
| 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.nio.file.spi | 
 Service-provider classes for the  
java.nio.file package. | 
| java.rmi | 
 Provides the RMI package. 
 | 
| 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.security.cert | 
 Provides classes and interfaces for parsing and managing
 certificates, certificate revocation lists (CRLs), and
 certification paths. 
 | 
| java.sql | 
 Provides the API for accessing and processing data stored in a 
data source (usually a relational database) using the 
JavaTM programming language. 
 | 
| javax.activation | |
| javax.imageio | 
 The main package of the Java Image I/O API. 
 | 
| javax.management.loading | 
 Provides the classes which implement advanced dynamic
        loading. 
 | 
| javax.management.remote | 
 Interfaces for remote access to
        JMX MBean servers. 
 | 
| javax.net | 
 Provides classes for networking applications. 
 | 
| javax.net.ssl | 
 Provides classes for the secure socket package. 
 | 
| javax.print | 
 Provides the principal classes and interfaces for the 
JavaTM Print Service API. 
 | 
| javax.print.attribute | 
 Provides classes and interfaces
that describe the types of JavaTM Print
Service attributes and how they can be collected into attribute sets. 
 | 
| javax.print.attribute.standard | 
 Package javax.print.attribute.standard
contains classes for specific printing attributes. 
 | 
| javax.rmi.ssl | 
 Provides implementations of  
RMIClientSocketFactory 
and RMIServerSocketFactory over 
the Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols. | 
| javax.security.auth.kerberos | 
 This package contains utility classes related to the Kerberos network
 authentication protocol. 
 | 
| javax.sound.midi | 
 Provides interfaces and classes for I/O, sequencing, and synthesis of MIDI 
(Musical Instrument Digital Interface) data. 
 | 
| javax.sound.midi.spi | 
 Supplies interfaces for service providers to implement when
offering new MIDI devices, MIDI file readers and writers, or sound bank readers. 
 | 
| javax.sound.sampled | 
 Provides interfaces and classes for capture, processing, and playback of sampled audio data. 
 | 
| javax.sound.sampled.spi | 
 Supplies abstract classes for service providers to subclass when
offering new audio devices, sound file readers and writers, or audio format converters. 
 | 
| javax.sql | 
 Provides the API for server side data source access and processing from
the JavaTM programming language. 
 | 
| javax.sql.rowset | 
 Standard interfaces and base classes for JDBC  
RowSet
implementations. | 
| javax.sql.rowset.serial | 
 Provides utility classes to allow serializable mappings between SQL types
and data types in the Java programming language. 
 | 
| javax.swing | 
 Provides a set of "lightweight"
(all-Java language) components that,
to the maximum degree possible, work the same on all platforms. 
 | 
| javax.swing.event | 
 Provides for events fired by Swing components. 
 | 
| javax.swing.plaf.synth | 
 
      Synth is a skinnable look and feel in which all painting is
      delegated. 
 | 
| javax.swing.text.html | 
 Provides the class  
HTMLEditorKit and supporting classes
for creating HTML text editors. | 
| javax.tools | 
 Provides interfaces for tools which can be invoked from a program,
 for example, compilers. 
 | 
| javax.xml.bind | 
 
        Provides a runtime binding framework for client applications including
        unmarshalling, marshalling, and validation capabilities. 
 | 
| javax.xml.bind.helpers | 
 
        JAXB Provider Use Only: Provides partial default implementations for 
        some of the javax.xml.bind interfaces. 
 | 
| javax.xml.validation | 
 
                    This package provides an API for validation of XML documents. 
 | 
| javax.xml.ws | 
 This package contains the core JAX-WS APIs. 
 | 
| javax.xml.ws.spi | 
 This package defines SPIs for JAX-WS. 
 | 
| javax.xml.ws.spi.http | 
 Provides HTTP SPI that is used for portable deployment of JAX-WS
  web services in containers(for e.g. 
 | 
| org.ietf.jgss | 
 This package presents a framework that allows application developers to
    make use of security services like authentication, data integrity and
    data confidentiality from a variety of underlying security mechanisms
    like Kerberos, using a unified API. 
 | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| MalformedURLException
 Thrown to indicate that a malformed URL has occurred. 
 | 
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| InetAddress
 This class represents an Internet Protocol (IP) address. 
 | 
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| Authenticator
 The class Authenticator represents an object that knows how to obtain
 authentication for a network connection. 
 | 
| Authenticator.RequestorType
 The type of the entity requesting authentication. 
 | 
| CacheRequest
 Represents channels for storing resources in the
 ResponseCache. 
 | 
| CacheResponse
 Represent channels for retrieving resources from the
 ResponseCache. 
 | 
| ContentHandler
 The abstract class  
ContentHandler is the superclass
 of all classes that read an Object from a
 URLConnection. | 
| ContentHandlerFactory
 This interface defines a factory for content handlers. 
 | 
| CookieHandler
 A CookieHandler object provides a callback mechanism to hook up a
 HTTP state management policy implementation into the HTTP protocol
 handler. 
 | 
| CookiePolicy
 CookiePolicy implementations decide which cookies should be accepted
 and which should be rejected. 
 | 
| CookieStore
 A CookieStore object represents a storage for cookie. 
 | 
| DatagramPacket
 This class represents a datagram packet. 
 | 
| DatagramSocket
 This class represents a socket for sending and receiving datagram packets. 
 | 
| DatagramSocketImpl
 Abstract datagram and multicast socket implementation base class. 
 | 
| DatagramSocketImplFactory
 This interface defines a factory for datagram socket implementations. 
 | 
| FileNameMap
 A simple interface which provides a mechanism to map
 between a file name and a MIME type string. 
 | 
| HttpCookie
 An HttpCookie object represents an HTTP cookie, which carries state
 information between server and user agent. 
 | 
| Inet6Address
 This class represents an Internet Protocol version 6 (IPv6) address. 
 | 
| InetAddress
 This class represents an Internet Protocol (IP) address. 
 | 
| InetSocketAddress
 This class implements an IP Socket Address (IP address + port number)
 It can also be a pair (hostname + port number), in which case an attempt
 will be made to resolve the hostname. 
 | 
| InterfaceAddress
 This class represents a Network Interface address. 
 | 
| MalformedURLException
 Thrown to indicate that a malformed URL has occurred. 
 | 
| NetworkInterface
 This class represents a Network Interface made up of a name,
 and a list of IP addresses assigned to this interface. 
 | 
| PasswordAuthentication
 The class PasswordAuthentication is a data holder that is used by
 Authenticator. 
 | 
| ProtocolException
 Thrown to indicate that there is an error in the underlying
 protocol, such as a TCP error. 
 | 
| ProtocolFamily
 Represents a family of communication protocols. 
 | 
| Proxy
 This class represents a proxy setting, typically a type (http, socks) and
 a socket address. 
 | 
| Proxy.Type
 Represents the proxy type. 
 | 
| ProxySelector
 Selects the proxy server to use, if any, when connecting to the
 network resource referenced by a URL. 
 | 
| ResponseCache
 Represents implementations of URLConnection caches. 
 | 
| Socket
 This class implements client sockets (also called just
 "sockets"). 
 | 
| SocketAddress
 This class represents a Socket Address with no protocol attachment. 
 | 
| SocketException
 Thrown to indicate that there is an error creating or accessing a Socket. 
 | 
| SocketImpl
 The abstract class  
SocketImpl is a common superclass
 of all classes that actually implement sockets. | 
| SocketImplFactory
 This interface defines a factory for socket implementations. 
 | 
| SocketOption
 A socket option associated with a socket. 
 | 
| SocketOptions
 Interface of methods to get/set socket options. 
 | 
| StandardProtocolFamily
 Defines the standard families of communication protocols. 
 | 
| UnknownHostException
 Thrown to indicate that the IP address of a host could not be determined. 
 | 
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| URISyntaxException
 Checked exception thrown to indicate that a string could not be parsed as a
 URI reference. 
 | 
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| URLClassLoader
 This class loader is used to load classes and resources from a search
 path of URLs referring to both JAR files and directories. 
 | 
| URLConnection
 The abstract class  
URLConnection is the superclass
 of all classes that represent a communications link between the
 application and a URL. | 
| URLStreamHandler
 The abstract class  
URLStreamHandler is the common
 superclass for all stream protocol handlers. | 
| URLStreamHandlerFactory
 This interface defines a factory for  
URL stream
 protocol handlers. | 
| Class and Description | 
|---|
| DatagramSocket
 This class represents a socket for sending and receiving datagram packets. 
 | 
| InetAddress
 This class represents an Internet Protocol (IP) address. 
 | 
| NetworkInterface
 This class represents a Network Interface made up of a name,
 and a list of IP addresses assigned to this interface. 
 | 
| ProtocolFamily
 Represents a family of communication protocols. 
 | 
| ServerSocket
 This class implements server sockets. 
 | 
| Socket
 This class implements client sockets (also called just
 "sockets"). 
 | 
| SocketAddress
 This class represents a Socket Address with no protocol attachment. 
 | 
| SocketOption
 A socket option associated with a socket. 
 | 
| Class and Description | 
|---|
| ProtocolFamily
 Represents a family of communication protocols. 
 | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| Class and Description | 
|---|
| MalformedURLException
 Thrown to indicate that a malformed URL has occurred. 
 | 
| Class and Description | 
|---|
| MalformedURLException
 Thrown to indicate that a malformed URL has occurred. 
 | 
| ServerSocket
 This class implements server sockets. 
 | 
| Socket
 This class implements client sockets (also called just
 "sockets"). 
 | 
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| URLClassLoader
 This class loader is used to load classes and resources from a search
 path of URLs referring to both JAR files and directories. 
 | 
| URLStreamHandlerFactory
 This interface defines a factory for  
URL stream
 protocol handlers. | 
| Class and Description | 
|---|
| MalformedURLException
 Thrown to indicate that a malformed URL has occurred. 
 | 
| Class and Description | 
|---|
| InetAddress
 This class represents an Internet Protocol (IP) address. 
 | 
| ServerSocket
 This class implements server sockets. 
 | 
| Socket
 This class implements client sockets (also called just
 "sockets"). 
 | 
| UnknownHostException
 Thrown to indicate that the IP address of a host could not be determined. 
 | 
| Class and Description | 
|---|
| HttpURLConnection
 A URLConnection with support for HTTP-specific features. 
 | 
| InetAddress
 This class represents an Internet Protocol (IP) address. 
 | 
| ServerSocket
 This class implements server sockets. 
 | 
| Socket
 This class implements client sockets (also called just
 "sockets"). 
 | 
| UnknownHostException
 Thrown to indicate that the IP address of a host could not be determined. 
 | 
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| URLConnection
 The abstract class  
URLConnection is the superclass
 of all classes that represent a communications link between the
 application and a URL. | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| Class and Description | 
|---|
| ServerSocket
 This class implements server sockets. 
 | 
| Socket
 This class implements client sockets (also called just
 "sockets"). 
 | 
| Class and Description | 
|---|
| InetAddress
 This class represents an Internet Protocol (IP) address. 
 | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| Class and Description | 
|---|
| URI
 Represents a Uniform Resource Identifier (URI) reference. 
 | 
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| URL
 Class  
URL represents a Uniform Resource
 Locator, a pointer to a "resource" on the World
 Wide Web. | 
| Class and Description | 
|---|
| InetSocketAddress
 This class implements an IP Socket Address (IP address + port number)
 It can also be a pair (hostname + port number), in which case an attempt
 will be made to resolve the hostname. 
 | 
| Class and Description | 
|---|
| InetAddress
 This class represents an Internet Protocol (IP) address. 
 | 
 Submit a bug or feature 
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
 Copyright © 1993, 2014, Oracle and/or its affiliates.  All rights reserved.