import java.net.*;

/**
 * A utility for determining the IP addresses
 * of a host given its name
 *
 * @version 1.0
 * @author  Prof. David Bernstein, James Madison University
 *
 */
public class GetAddress
{

    /**
     * The entry point
     *
     * @param args  The command-line arguments
     */
    public static void main(String[] args)
    {
       InetAddress[]      ip;
       int                i;


       System.out.println("\n");
       if (args.length == 0) 
       {
          System.out.println("You must enter a host name.");
       } 
       else
       {
          try 
          {
             ip = InetAddress.getAllByName(args[0]);

             for (i=0; i < ip.length; i++) 
             {
                System.out.println("Address: "+ip[i]);
             }
          }
          catch (UnknownHostException uhe) 
          {
             System.out.println("This computer's address is unavailable!");
          }
       }
       System.out.println("\n");
    }
}