Miscellany

import java.net.*;
import java.util.Enumeration;
public class Test
{
	public static void main(String[] args) throws SocketException
	{

		Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
		while(interfaces.hasMoreElements())
		{
			Enumeration<InetAddress> addresses = interfaces.nextElement().getInetAddresses();
			while(addresses.hasMoreElements())
				System.out.println(addresses.nextElement().getHostAddress());
		}
	}
}