April 05
Prof. Ismael H. F. Santos -  ismael@tecgraf.puc-rio.br                                                          2
IP Addresses & Hostnames
njava.net.InetAddress class
nRepresents a single IP address
nFactory class – no public constructor
nPerforms transparent DNS lookups or reverse lookups njava.net.UnkownHostException thrown if DNS system can’t find IP address for specific host