[Projeto final do desafio] Está correto?

package Interfaces;
import java.util.Scanner;

public interface Calculation {
    void creditLimit(Scanner scannerCredit);
}

package Main;
import Interfaces.Calculation;
import java.util.Comparator;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main implements Calculation {
    //variables
    private String totalPurchases;
    private double cardLimit;
    private double priceProducts;

    //empty contructor
    public Main() {
    }

    //getters
    public String getTotalPurchases() {
        return totalPurchases;
    }
    public double getCardLimit() {
        return cardLimit;
    }
    public double getPriceProducts() {
        return priceProducts;
    }

    @Override
    public void creditLimit(Scanner scannerCredit) {
        String menu =
                "Welcome to Alura shop! \n" +
                        "Type your card limit: ";

        System.out.println(menu);
        cardLimit = scannerCredit.nextDouble();
        System.out.println("Your card limit is: U$" + this.getCardLimit());
    }
    public void purchase(List<String> productsList, List<Integer> purshasedPrices, Scanner scannerPurshase) {
        System.out.println("Type what you want to buy:");
        productsList.add(scannerPurshase.next());
        System.out.println("Type the price of product:");
        int totalPrice = scannerPurshase.nextInt();
        this.cardLimit = cardLimit - totalPrice;
        purshasedPrices.add(totalPrice);
        System.out.println("Current credit: " + getCardLimit());

        if (priceProducts > this.getCardLimit()) {
            System.out.println("Insufficient credit!");
            return;
        }
    }
    public void loopPurchase(Scanner scannerOption, List<String> productsList,
                             List<Integer> purshasedPrices, Scanner scannerPurshase) {
        int option = 0;
        while (option != 0 || option != 1) {
            System.out.println("Type '0' to quit and '1' to continue:");
            option = scannerOption.nextInt();
            if (option == 0) {
                System.out.println("Closing app...");
                return;
            } else {
                this.purchase(productsList, purshasedPrices, scannerPurshase);
            }
        }
    }
    public void displayPurchase(List<String> productsList, List<Integer> purshasedPrices) {
        System.out.println("************************************");
        if (productsList == null || productsList.isEmpty()) {
            System.out.println("Nothing purchased");
        } else {
            System.out.println("Products purchased:");
            List<Integer> indices = new ArrayList<>();
            for (int i = 0; i < purshasedPrices.size(); i++) {
                indices.add(i);
            }
            indices.sort(Comparator.comparing(purshasedPrices::get).reversed());
            for (int index : indices) {
                System.out.println(productsList.get(index) + " - U$" + purshasedPrices.get(index));
            }
        }
        System.out.println("************************************");
    }

    public static void main(String[] args) {
        //objects
        Scanner scannerCredit = new Scanner(System.in);
        Scanner scannerPurshase = new Scanner(System.in);
        Scanner scannerOption = new Scanner(System.in);
        List<String> productsList = new ArrayList<>();
        List<Integer> purshasedPrices = new ArrayList<>();
        var myAccount = new Main();

        myAccount.creditLimit(scannerCredit);
        myAccount.loopPurchase(scannerOption, productsList, purshasedPrices, scannerPurshase);
        myAccount.displayPurchase(productsList, purshasedPrices);
    }
}

Saída esperada:
Welcome to Alura shop! 
Type your card limit: 
1000
Your card limit is: U$1000.0
Type '0' to quit and '1' to continue:
1
Type what you want to buy:
camisa
Type the price of product:
250
Current credit: 750.0
Type '0' to quit and '1' to continue:
1
Type what you want to buy:
calça
Type the price of product:
350
Current credit: 400.0
Type '0' to quit and '1' to continue:
1
Type what you want to buy:
headset
Type the price of product:
350
Current credit: 50.0
Type '0' to quit and '1' to continue:
1
Type what you want to buy:
chinelo
Type the price of product:
50
Current credit: 0.0
Type '0' to quit and '1' to continue:
0
Closing app...
************************************
Products purchased:
calça - U$350
headset - U$350
camisa - U$250
chinelo - U$50
************************************