[NOTE: I am not responsible to what this does to you or your computer]

100% made by me!

Let's begin!

Lets start with the import statements!

import java.util.Scanner.*; // including Java's util scanner...
import java.net.*; // including Java's network API...
Ok, now for class name you put it your as your title, but i'm making mine VadersProg.

public class VadersProg
{
     static Scanner scanner = new Scanner(System.in);
     static Host;
     public static void main(String[] args)
     {
          System.out.println("Vaders Ip look up, Enter a web address: ");
          do
          {
                host = scanner.nextLine();
                try {
                        InetAddress[] addresses = InetAddress.getAllByName(host) // gets host's name
                        for (InetAddress ip : addresses)
                             System.out.println(ip.toString());
                      }
                      catch (UnknownHostException e)
                      {
                            System.out.println("not a host or invalid or unknown");
                       }
                 } while (again());
           }
           private static boolean again();
           {
                System.out.println();
                String d
                while (true)
                {
                      System.out.println("again?" + "yes or no");
                      d = scanner.nextLine();
                      if(s.equalsIgnoreCase("no"))
                         return false;
                      else if (s.equalsIgnoreCase("yes"));
                                return true; // returns to menu
Hope this helped!