How can I get the host adresses of all computers in a local network

I want to learn that how can I do this with java?
I have a solution as iterating and checking with InetAdress.getHost("iteratedhost"), if no exception such host is reachable.
But I search for better solutions

MulticastSocket is a good option as I shortly
evaluated.
ThanksThis does not allow you to find all the IP address of
all computers on a network. It will enable you to
send information to any computer that is a member of
a particular IP Multicast Group.He doesn't seem to really need to know all the IP addresses. He just seems to want to "find" a server. Looks like MulticastSocket is kinda for that purpose, broadcasting a message out for someone to respond to. That response could be: "I'm the server you want - my IP address is x.y.z.a". Then he would use a normal Socket to bind to that guy. Maybe it's a good solution, maybe not. Just giving him a possible route. MulticastSocket must be good for something.

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