| Name | Description | Type | Package | Framework |
| Authenticator | The class Authenticator represents an object that knows how to obtain authentication for a network connection. | Class | java.net | Java SE |
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| Authenticator .RequestorType | The type of the entity requesting authentication. | Class | java.net.Authenticator | Java SE |
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| BindException | Signals that an error occurred while attempting to bind a socket to a local address and port. | Class | java.net | Java SE |
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| CacheRequest | Represents channels for storing resources in the ResponseCache. | Class | java.net | Java SE |
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| CacheResponse | Represent channels for retrieving resources from the ResponseCache. | Class | java.net | Java SE |
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| ConnectException | Signals that an error occurred while attempting to connect a socket to a remote address and port. | Class | java.net | Java SE |
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| ContentHandler | The abstract class ContentHandler is the superclass of all classes that read an Object from a | Class | java.net | Java SE |
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| CookieHandler | A CookieHandler object provides a callback mechanism to hook up a HTTP state management policy implementation into the HTTP protocol | Class | java.net | Java SE |
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| CookieManager | CookieManager provides a concrete implementation of CookieHandler, which separates the storage of cookies from the policy surrounding accepting | Class | java.net | Java SE |
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| ContentHandlerFactory | This interface defines a factory for content handlers. | Interface | java.net | Java SE |
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| CookiePolicy | CookiePolicy implementations decide which cookies should be accepted and which should be rejected. | Interface | java.net | Java SE |
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| CookieStore | A CookieStore object represents a storage for cookie. | Interface | java.net | Java SE |
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| DatagramPacket | This class represents a datagram packet. | Class | java.net | Java SE |
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| DatagramSocket | This class represents a socket for sending and receiving datagram packets. | Class | java.net | Java SE |
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| DatagramSocketImpl | Abstract datagram and multicast socket implementation base class. | Class | java.net | Java SE |
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| DatagramSocketImplFactory | This interface defines a factory for datagram socket implementations. | Interface | java.net | Java SE |
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| FileNameMap | A simple interface which provides a mechanism to map between a file name and a MIME type string. | Interface | java.net | Java SE |
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| HttpCookie | An HttpCookie object represents an HTTP cookie, which carries state information between server and user agent. | Class | java.net | Java SE |
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| HttpRetryException | Thrown to indicate that a HTTP request needs to be retried but cannot be retried automatically, due to streaming mode | Class | java.net | Java SE |
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| HttpURLConnection | A URLConnection with support for HTTP-specific features. | Class | java.net | Java SE |
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| IDN | Provides methods to convert internationalized domain names (IDNs) between a normal Unicode representation and an ASCII Compatible Encoding (ACE) representation. | Class | java.net | Java SE |
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| Inet4Address | This class represents an Internet Protocol version 4 (IPv4) address. | Class | java.net | Java SE |
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| Inet6Address | This class represents an Internet Protocol version 6 (IPv6) address. | Class | java.net | Java SE |
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| InetAddress | This class represents an Internet Protocol (IP) address. | Class | java.net | Java SE |
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| 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 | Class | java.net | Java SE |
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| InterfaceAddress | This class represents a Network Interface address. | Class | java.net | Java SE |
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| JarURLConnection | A URL Connection to a Java ARchive (JAR) file or an entry in a JAR The syntax of a JAR URL is: | Class | java.net | Java SE |
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| MalformedURLException | Thrown to indicate that a malformed URL has occurred. | Class | java.net | Java SE |
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| MulticastSocket | The multicast datagram socket class is useful for sending and receiving IP multicast packets. | Class | java.net | Java SE |
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| NetPermission | This class is for various network permissions. | Class | java.net | Java SE |
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| NetworkInterface | This class represents a Network Interface made up of a name, and a list of IP addresses assigned to this interface. | Class | java.net | Java SE |
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| NoRouteToHostException | Signals that an error occurred while attempting to connect a socket to a remote address and port. | Class | java.net | Java SE |
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| PasswordAuthentication | The class PasswordAuthentication is a data holder that is used by Authenticator. | Class | java.net | Java SE |
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| PortUnreachableException | Signals that an ICMP Port Unreachable message has been received on a connected datagram. | Class | java.net | Java SE |
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| ProtocolException | Thrown to indicate that there is an error in the underlying protocol, such as a TCP error. | Class | java.net | Java SE |
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| Proxy | This class represents a proxy setting, typically a type (http, socks) and A Proxy is an immutable object. | Class | java.net | Java SE |
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| ProxySelector | Selects the proxy server to use, if any, when connecting to the network resource referenced by a URL. | Class | java.net | Java SE |
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| Proxy .Type | Represents the proxy type. | Class | java.net.Proxy | Java SE |
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| ProtocolFamily | Represents a family of communication protocols. | Interface | java.net | Java SE |
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| ResponseCache | Represents implementations of URLConnection caches. | Class | java.net | Java SE |
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| SecureCacheResponse | Represents a cache response originally retrieved through secure means, such as TLS. | Class | java.net | Java SE |
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| ServerSocket | This class implements server sockets. | Class | java.net | Java SE |
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| Socket | This class implements client sockets (also called just sockets). | Class | java.net | Java SE |
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| SocketAddress | This class represents a Socket Address with no protocol attachment. | Class | java.net | Java SE |
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| SocketException | Thrown to indicate that there is an error creating or accessing a Socket. | Class | java.net | Java SE |
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| SocketImpl | The abstract class SocketImpl is a common superclass of all classes that actually implement sockets. | Class | java.net | Java SE |
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| SocketPermission | This class represents access to a network via sockets. | Class | java.net | Java SE |
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| SocketTimeoutException | Signals that a timeout has occurred on a socket read or accept. | Class | java.net | Java SE |
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| StandardSocketOptions | Defines the standard socket options. | Class | java.net | Java SE |
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| StandardProtocolFamily | enum StandardProtocolFamilyDefines the standard families of communication protocols. | Class | java.net | Java SE |
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| SocketImplFactory | This interface defines a factory for socket implementations. | Interface | java.net | Java SE |
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| SocketOption | A socket option associated with a socket. | Interface | java.net | Java SE |
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| SocketOptions | Interface of methods to get/set socket options. | Interface | java.net | Java SE |
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| UnknownHostException | Thrown to indicate that the IP address of a host could not be determined. | Class | java.net | Java SE |
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| UnknownServiceException | Thrown to indicate that an unknown service exception has occurred. | Class | java.net | Java SE |
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| URI | Represents a Uniform Resource Identifier (URI) reference. | Class | java.net | Java SE |
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| URISyntaxException | Checked exception thrown to indicate that a string could not be parsed as aSince:1. | Class | java.net | Java SE |
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| URL | Locator, a pointer to a resource on the World Wide Web. | Class | java.net | Java SE |
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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. | Class | java.net | Java SE |
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| URLConnection | The abstract class URLConnection is the superclass of all classes that represent a communications link between the | Class | java.net | Java SE |
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| URLDecoder | Utility class for HTML form decoding. | Class | java.net | Java SE |
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| URLEncoder | Utility class for HTML form encoding. | Class | java.net | Java SE |
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| URLPermission | Represents permission to access a resource or set of resources defined by a given url, and for a given set of user-settable request methods | Class | java.net | Java SE |
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| URLStreamHandler | The abstract class URLStreamHandler is the common superclass for all stream protocol handlers. | Class | java.net | Java SE |
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| URLStreamHandlerProvider | URL stream handler service-provider class. | Class | java.net.spi | Java SE |
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| URLStreamHandlerFactory | This interface defines a factory for URL stream A URL stream handler factory is used as specified in the | Interface | java.net | Java SE |
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| URI | An implementation of a Univeral Resource Identifier (URI). | Class | java.net | CodeName One |
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| URISyntaxException | | Class | java.net | CodeName One |