Class Summary
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Authenticator |
The class Authenticator represents an object that knows how to obtain
authentication for a network connection.
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ContentHandler |
The abstract class ContentHandler is the superclass
of all classes that read an Object from a
URLConnection .
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DatagramPacket |
This class represents a datagram packet.
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DatagramSocket |
This class represents a socket for sending and receiving datagram packets.
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DatagramSocketImpl |
Abstract datagram and multicast socket implementation base class.
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HttpURLConnection |
A URLConnection with support for HTTP-specific features.
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InetAddress |
This class represents an Internet Protocol (IP) address.
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JarURLConnection |
A URL Connection to a Java ARchive (JAR) file or an entry in a JAR
file.
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MulticastSocket |
The multicast datagram socket class is useful for sending
and receiving IP multicast packets.
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NetPermission |
This class is for various network permissions.
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PasswordAuthentication |
The class PasswordAuthentication is a data holder that is used by
Authenticator.
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ServerSocket |
This class implements server sockets.
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Socket |
This class implements client sockets (also called just
"sockets").
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SocketImpl |
The abstract class SocketImpl is a common superclass
of all classes that actually implement sockets.
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SocketPermission |
This class represents access to a network via sockets.
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URL |
Class URL represents a Uniform Resource
Locator, a pointer to a "resource" on the World
Wide Web.
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URLClassLoader |
This class loader is used to load classes and resources from a search
path of URLs referring to both JAR files and directories.
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URLConnection |
The abstract class URLConnection is the superclass
of all classes that represent a communications link between the
application and a URL.
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URLEncoder |
The class contains a utility method for converting a
String into a MIME format called
"x-www-form-urlencoded " format.
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URLStreamHandler |
The abstract class URLStreamHandler is the common
superclass for all stream protocol handlers.
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Exception Summary
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BindException |
Signals that an error occurred while attempting to bind a
socket to a local address and port.
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ConnectException |
Signals that an error occurred while attempting to connect a
socket to a remote address and port.
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MalformedURLException |
Thrown to indicate that a malformed URL has occurred.
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NoRouteToHostException |
Signals that an error occurred while attempting to connect a
socket to a remote address and port.
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ProtocolException |
Thrown to indicate that there is an error in the underlying
protocol, such as a TCP error.
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SocketException |
Thrown to indicate that there is an error in the underlying
protocol, such as a TCP error.
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UnknownHostException |
Thrown to indicate that the IP address of a host could not be determined.
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UnknownServiceException |
Thrown to indicate that an unknown service exception has
occurred.
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