Java by API/java.net
- Authenticator
- CookieHandler
- CookieManager
- CookiePolicy
- CookieStore
- DatagramPacket
- DatagramSocket
- HttpCookie
- HttpURLConnection
- IDN
- InetAddress
- InterfaceAddress
- JarURLConnection
- MulticastSocket
- NetworkInterface
- PasswordAuthentication
- ServerSocket
- Socket
- SocketPermission
- URI
- URL
- URLClassLoader
- URLConnection
- URLDecoder
- URLEncoder