import java.net.*;

class PingZero {
    public static void main(String args[]) {
        try {
            InetAddress inetAddress = InetAddress.getByAddress(new byte[] { 0,
                    0, 0, 0 });
            boolean b = inetAddress.isReachable((int) (1.0 * 3000));
            if (b) {
                System.out.println(" 0.0.0.0 is reachable ! ");
            } else {
                System.out.println(" 0.0.0.0 is not reachable ! ");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}