跟TMD第一次敲A+B一样～

import java.util.Enumeration;
import java.net.*;

public class Main 
{
	public static void main(String[] args)
	{
		try
		{
			Enumeration<NetworkInterface> interfaceList = 
					NetworkInterface.getNetworkInterfaces();
			if (null == interfaceList)
			{
				System.out.println("--No interfaces found--");
			}
			else
			{
				while ( interfaceList.hasMoreElements() )
				{
					NetworkInterface iface = interfaceList.nextElement();
					System.out.println("Interface " + iface.getName() + ":");
					Enumeration<InetAddress> addrList = iface.getInetAddresses();
					if ( !addrList.hasMoreElements() )
					{
						System.out.println("\t(No addresses for this interface)");
					}
					while ( addrList.hasMoreElements() )
					{
						InetAddress address = addrList.nextElement();
						System.out.print("\tAddress " + 
						((address instanceof Inet4Address ? "(v4)" : (address instanceof Inet6Address ? "(v6)" : "(?)"))));
						System.out.println(": " + address.getHostAddress());
					}
				}
			}
		}
		catch (SocketException se)
		{
			System.out.println("Error getting network interface:" + se.getMessage());
		}
		
		for (String host : args)
		{
			try
			{
				System.out.println(host + ":");
				InetAddress[] addressList = InetAddress.getAllByName(host);
				for (InetAddress address : addressList) 
				{
					System.out.println("\t" + address.getHostName() + "/" + address.getHostAddress());
				}
			}
			catch (UnknownHostException e)
			{
				System.out.println("\tUnable to find address for " + host);
			}
		}
		return ;
	}
}