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