package pay.app;
import pay.api.Payment;
import pay.impl.*;
public class Main {
    public static void main(String[] args) {
        Payment p = new Card(100);
        String s = switch (p) { case Card c -> "card"; case Upi u -> "upi"; };
        System.out.println(s + " in module " + Payment.class.getModule().getName());
    }
}