Time: 2024-04-18 星期四 15:56:35
Author: Jackasher

建模实现代码

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

class Customer {
    private String name;
    private String memberID;
    private float balance;

    public Customer(String name, String memberID, float balance) {
        this.name = name;
        this.memberID = memberID;
        this.balance = balance;
    }

    // Getters and setters...

    public void addTransaction(Transaction transaction) {
        // Add transaction to customer's transaction history
    }
}

class Product {
    private String barcode;
    private String name;
    private float price;

    public Product(String barcode, String name, float price) {
        this.barcode = barcode;
        this.name = name;
        this.price = price;
    }

    // Getters and setters...
}

class ShoppingCart {
    private List<Product> items;
    private float total;

    public ShoppingCart() {
        this.items = new ArrayList<>();
        this.total = 0.0f;
    }

    public void addItem(Product product) {
        items.add(product);
        total += product.getPrice();
    }

    public void removeItem(Product product) {
        items.remove(product);
        total -= product.getPrice();
    }

    public float calculateTotal() {
        return total;
    }
}

class Transaction {
    private String dateTime;
    private Customer customer;
    private ShoppingCart cart;

    public Transaction(String dateTime, Customer customer, ShoppingCart cart) {
        this.dateTime = dateTime;
        this.customer = customer;
        this.cart = cart;
    }

    // Getters and setters...
}

class PaymentMethod {
    private String type;
    private String cardNumber;

    public PaymentMethod(String type, String cardNumber) {
        this.type = type;
        this.cardNumber = cardNumber;
    }

    // Getters and setters...

    public void processPayment(float amount) {
        // Process payment for the given amount
    }

    public boolean validateCardNumber() {
        // Validate the card number
        return true; // Placeholder logic
    }
}

public class AutoShopping {
    public static void main(String[] args) {
        // Create a customer
        Customer customer = new Customer("John Doe", "123456", 100.0f);

        // Create some products
        Product product1 = new Product("123", "Product 1", 10.0f);
        Product product2 = new Product("456", "Product 2", 20.0f);
        Product product3 = new Product("789", "Product 3", 15.0f);

        // Create a shopping cart
        ShoppingCart cart = new ShoppingCart();

        // Add products to the shopping cart
        cart.addItem(product1);
        cart.addItem(product2);
        cart.addItem(product3);

        // Create a transaction
        Transaction transaction = new Transaction("2022-01-01 10:00:00", customer, cart);

        // Create a payment method
        PaymentMethod paymentMethod = new PaymentMethod("Credit Card", "1234567890");

        // Process payment
        paymentMethod.processPayment(cart.calculateTotal());

        // Validate card number
        boolean isValidCard = paymentMethod.validateCardNumber();

        if (isValidCard) {
            // Add transaction to customer's history
            customer.addTransaction(transaction);

            // Print transaction details
            System.out.println("Transaction Date: " + transaction.getDateTime());
            System.out.println("Customer: " + transaction.getCustomer().getName());
            System.out.println("Total Amount: $" + cart.calculateTotal());
            System.out.println("Payment Method: " + paymentMethod.getType());
            System.out.println("Payment Processed Successfully.");
        } else {
            System.out.println("Invalid card number. Payment failed.");
        }
    }
}