InetAddress: getHostName()
import java.net.InetAddress; import java.net.UnknownHostException; public class MainClass { public static void main(String[] args) { try { InetAddress address = InetAddress.getLocalHost(); System.out.println("My name is " + address.getHostName()); } catch (UnknownHostException e) { System.out.println("I'm sorry. I don't know my own name."); } } }