Lesson: Programmatic Access to Network Parameters
Systems often run with
multiple active network connections, such as wired Ethernet,
802.11 b/g (wireless), and bluetooth. Some applications might
need to access this information to perform the particular network
activity on a specific connection.
The
java.net.NetworkInterface class provides access to this information.
This lesson guides you through some of the more common uses of
this class and provides examples that list all the network interfaces
on a machine as well as their IP addresses and status.
This page describes a network interface and explains why you might want to use it.
This page contains an example that illustrates how a client program
can retrieve all the network interfaces on a machine.
This page shows you how to list the IP addresses assigned to all the
network interfaces on a machine.
This page shows you how to determine whether a network interface is
running or if the network interface is a loopback interface, a
point-to-point interface, or a virtual interface. You can also learn
how to determine if the interface supports multicasting.
