Help with a program

So /prog/ I want to write a java program that searches the internet.  But i don't mean something gay like google i mean starts with http://a.com then http://b.com so on and so on searching every possibility including sub dirs and so on.

Where should I start

so far i have

import.java.util.*

to actually brute-force the internet, you'd have to come up with a list of all possible ip addresses, a list of all possible domain names, and a list of all possible paths on a web server, and then do something like this (pseudo-code):
for ip in ip_addresses
  for name in domain_names
    for path in paths
      connection = connect( address = ip, port = 80 )
      send( connection, "GET " + path + " HTTP/1.1\nHost: " + name + "\n\n" )
      close( connection )

you could probably speed it up a bit by connecting to several ip addresses in parallel, but it'd still be slow as fuck.