import java.net.InetAddress;
import java.net.Socket;
public class MainClass {
public static void main(String[] args) {
String host = "localhost";
try {
InetAddress theAddress = InetAddress.getByName(host);
for (int i = 1; i < 65536; i++) {
Socket connection = null;
connection = new Socket(host, i);
System.out.println("There is a server on port " + i + " of " + host);
if (connection != null)
connection.close();
} // end for
} catch (Exception ex) {
System.err.println(ex);
}
}
}