import java.net.*;

class Haha
{
public static void main(String[] args) throws Exception
{
    InetAddress[] addr = InetAddress.getAllByName(null);
    System.out.println(addr[0]);

    InetAddress addr1 = InetAddress.getByName("savannah.gnu.org");
    System.out.println(addr1);

    byte[] ipaddr = { 0x10, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x00, 0x20, 0x20, 0x0, 0x0, 0x0, 0x1 };
    InetAddress addr2 = InetAddress.getByAddress(ipaddr);
    System.out.println(addr2);
}
}