java.net

인터페이스  ContentHandlerFactory DatagramSocketImplFactory FileNameMap SocketImplFactory SocketOptions URLStreamHandlerFactory

클래스  Authenticator CacheRequest CacheResponse ContentHandler CookieHandler DatagramPacket DatagramSocket DatagramSocketImpl HttpURLConnection Inet4Address Inet6Address InetAddress InetSocketAddress JarURLConnection MulticastSocket NetPermission NetworkInterface PasswordAuthentication Proxy ProxySelector ResponseCache SecureCacheResponse ServerSocket Socket SocketAddress SocketImpl SocketPermission URI URL URLClassLoader URLConnection URLDecoder URLEncoder URLStreamHandler

열거형  Authenticator.RequestorType Proxy.Type

예외  BindException ConnectException HttpRetryException MalformedURLException NoRouteToHostException PortUnreachableException ProtocolException SocketException SocketTimeoutException UnknownHostException UnknownServiceException URISyntaxException