class PaymentProcessor {

    public void processCreditCardPayment() {
        System.out.println("Processing Credit Card Payment...");
    }

    public void processPayPalPayment() {
        System.out.println("Processing PayPal Payment...");
    }

    public void processCashPayment() {
        System.out.println("Processing Cash Payment...");
    }

    public static void main(String[] args) {
        PaymentProcessor processor = new PaymentProcessor();
        processor.processCreditCardPayment();
        processor.processPayPalPayment();
        processor.processCashPayment();
    }
}

import java.util.ArrayList;
import java.util.List;

// واجهة الدفع الموحدة
interface PaymentComponent {
    void processPayment();
}

// معاملة دفع فردية (Leaf)
class SinglePayment implements PaymentComponent {
    private String paymentType;

    public SinglePayment(String paymentType) {
        this.paymentType = paymentType;
    }

    @Override
    public void processPayment() {
        System.out.println("Processing " + paymentType + " payment.");
    }
}

// مجموعة مدفوعات (Composite)
class PaymentGroup implements PaymentComponent {
    private List payments = new ArrayList<>();

    public void addPayment(PaymentComponent payment) {
        payments.add(payment);
    }

    public void removePayment(PaymentComponent payment) {
        payments.remove(payment);
    }

    @Override
    public void processPayment() {
        for (PaymentComponent payment : payments) {
            payment.processPayment();
        }
    }
}

// الاستخدام
public class Main {
    public static void main(String[] args) {

        PaymentComponent creditCard = new SinglePayment("Credit Card");
        PaymentComponent payPal = new SinglePayment("PayPal");
        PaymentComponent cash = new SinglePayment("Cash");

        PaymentGroup paymentGroup = new PaymentGroup();
        paymentGroup.addPayment(creditCard);
        paymentGroup.addPayment(payPal);
        paymentGroup.addPayment(cash);

        paymentGroup.processPayment();
    }
}