Other InetAddress Services

public boolean isMulticastAddress();

static InetAddress[] getAllByName(String host);

Determines all the IP addresses of a host,

given the host's name.

static InetAddress getByName(String host);

Determines the IP address of a host,

given the host's name.

Let’s duplicate the basic service of the Unix command “nslookup” in Java. This will allow us to convert any IP name into its valid IP number. (We won’t support the -opt switches, to keep things simple.) From the Unix “nslookup man page(1M)”:

“nslookup is an interactive program to query ARPA Internet domain name servers. The user can contact servers to request information about a specific host, or print a list of hosts in the domain.”

Previous slide

Next slide

Back to first slide

View graphic version