Getting the computer name in Java [duplicate]

Question

I was wondering if there is a way to get the computer name in Java? I have seen several answers that feature java.net.InetAddress. However I was wondering if there is a way that does not use the network?

(As a side question, is the computer name only a network thing anyway, so therefore has to be done this way??)

Answer 1

The computer "name" is resolved from the IP address by the underlying DNS (Domain Name System) library of the OS. There's no universal concept of a computer name across OSes, but DNS is generally available. If the computer name hasn't been configured so DNS can resolve it, it isn't available.

import java.net.InetAddress; import java.net.UnknownHostException;  String hostname = "Unknown";  try {     InetAddress addr;     addr = InetAddress.getLocalHost();     hostname = addr.getHostName(); } catch (UnknownHostException ex) {     System.out.println("Hostname can not be resolved"); }