[완료] IP 얻어오는 프로그램.. IP를 못얻어오네요..

import java.net.*;
public class LocalIP {
    public static void main(String[] args) {
        try
        {
            java.net.InetAddress myPC   =   java.net.InetAddress.getLocalHost();
            System.out.println ( "IP address of my computer is " +  myPC.getHostAddress() );
        }
        catch (java.net.UnknownHostException e)
        {
            // Exception 처리
            System.out.println (e.toString());
        }
        catch (Exception e)
        {
            System.out.println (e.toString());
        }
 
    }
}