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Package java.net

Authenticator This abstract class provides a model for obtaining authentication information (in the form of a username and password) required by some network operations (such as hitting a password protected web site).
BindException This exception indicates that an error occurred while attempting to bind socket to a particular port.
ConnectException This exception indicates that an error occurred while attempting to connect to a remote host.
ContentHandler This is an abstract class that is the superclass for classes that read objects from URL's.
ContentHandlerFactory This interface maps MIME types to ContentHandler objects.
DatagramPacket This class models a packet of data that is to be sent across the network using a connectionless protocol such as UDP.
DatagramSocket This class models a connectionless datagram socket that sends individual packets of data across the network.
DatagramSocketImpl This abstract class models a datagram socket implementation.
DatagramSocketImplFactory This interface defines one method which returns a DatagramSocketImpl object.
FileNameMap This interface has one method which, when passed a filename, returns the MIME type associated with that filename.
HttpURLConnection This class provides a common abstract implementation for those URL connection classes that will connect using the HTTP protocol.
Inet4Address
Inet6Address
InetAddress This class models an Internet address.
InetSocketAddress InetSocketAddress instances represent socket addresses in the java.nio package.
JarURLConnection This abstract class represents a common superclass for implementations of jar URL's.
MalformedURLException This exception indicates that a URL passed to an object was not in a valid format.
MulticastSocket This class models a multicast UDP socket.
NetPermission This class is used to model miscellaneous network permissions.
NetworkInterface
NoRouteToHostException This exception indicates that there is no TCP/IP route to the requested host.
PasswordAuthentication This class serves a container for username/password pairs.
PlainDatagramSocketImpl This is the default socket implementation for datagram sockets.
PortUnreachableException This exception signals that an ICMP port unreachable datagram has been received.
ProtocolException This exception indicates that some sort of low level protocol exception occurred.
ServerSocket This class models server side sockets.
Socket This class models a client site socket.
SocketAddress Abstract base class for InetSocketAddress.
SocketException This exception indicates that a generic error occurred related to an operation on a socket.
SocketImpl This abstract class serves as the parent class for socket implementations.
SocketImplFactory This interface defines one method which returns a SocketImpl object.
SocketOptions This interface is used by SocketImpl and DatagramSocketImpl to implement options on sockets.
SocketPermission This class models a specific set of permssions for connecting to a host.
SocketTimeoutException This exception signals that a socket read or accept timed out.
URI
URISyntaxException This exception is thrown when a String cannot be parsed as a URI.
URL This final class represents an Internet Uniform Resource Locator (URL).
URLClassLoader A secure class loader that can load classes and resources from multiple locations.
URLConnection This class models a connection that retrieves the information pointed to by a URL object.
URLDecoder This utility class contains static methods that converts a string encoded in the x-www-form-urlencoded format to the original text.
URLEncoder This utility class contains static methods that converts a string into a fully encoded URL string in x-www-form-urlencoded format.
URLStreamHandler This class is the superclass of all URL protocol handlers.
URLStreamHandlerFactory This interface contains one method which maps the protocol portion of a URL (eg, "http" in "http://www.urbanophile.com/arenn/") to a URLStreamHandler object.
UnknownHostException This exception indicates that an attempt was made to reference a hostname or IP address that is not valid.
UnknownServiceException Contrary to what you might think, this does not indicate that the TCP/IP service name specified was invalid.