Java课堂作业：手机销售系统(控制台输出)

  在课堂上，一位老师提出制作一个手机销售系统。该系统在控制台显示，用户需要在控制台输入信息，方可完成手机销售环节。

class iphone{
        String iphoneModel;
        int Quantity;
        double Price;

        public iphone(String iphoneModel) {
            this.iphoneModel = iphoneModel;
        }

        public  String getIphoneModel() {
            return iphoneModel;
        }

        public String setIphoneModel(String IphoneModel) {
            iphoneModel = IphoneModel;
            return iphoneModel;
        }

        public int getQuantity() {
            return Quantity;
        }

        public int setQuantity(int quantity) {
            Quantity = quantity;
            return Quantity;
        }

        public double getPrice() {
            return Price;
        }

        public double setPrice(double price) {
            Price = price;
            return price;
        }
    }

class DeliveryInfo{
        String DeliveryAddress;
        String PostalCode;
        String Country;

        public String getDeliveryAddress() {
            return DeliveryAddress;
        }

        public String setDeliveryAddress(String deliveryAddress) {
            DeliveryAddress = deliveryAddress;
            return DeliveryAddress;
        }

        public String getPostalCode() {
            return PostalCode;
        }

        public String setPostalCode(String postalCode) {
            PostalCode = postalCode;
            return PostalCode;
        }

        public String getCountry() {
            return Country;
        }

        public String setCountry(String country) {
            Country = country;
            return Country;
        }
    }

class IphoneOrder extends iphone {
        double cost;

    public IphoneOrder(String iphoneModel) {
        super(iphoneModel);
    }




    public int getQuantityofOrder() {
        return this.Quantity;
    }

    public void setQuantityofOrder(int quantityofOrder) {
        this.Quantity = quantityofOrder;
    }


    public double getCost() {
        return cost;
    }


    public double setCost(double cost1) {
        cost = cost1;
        return cost;
    }
}

//用户登录界面
        System.out.println("Welcome to iPhones online Service");
        System.out.println("-----------------------------");
        System.out.println("Enter three iPhones to be sold");
//手机型号录入
        Scanner scanner=new Scanner(System.in);
        linkedList linkedList=new linkedList();
        for (int i = 1; i <4; i++) {
            System.out.print(i+". ");
            iphone iphone=new iphone(scanner.nextLine());
            linkedList.add(i-1,iphone);
        }
        System.out.println();

//货源信息
        DeliveryInfo deliveryInfo=new DeliveryInfo();
        System.out.println("Some other info" );
        System.out.println("---------------");
        System.out.print("Delivery address: ");
        deliveryInfo.setDeliveryAddress(scanner.nextLine());
        System.out.print("Postal Code: ");
        deliveryInfo.setPostalCode(scanner.nextLine());
        System.out.print("Country: ");
        deliveryInfo.setCountry(scanner.nextLine());
        System.out.println();

//手机价格和数量录入
        for (int i = 1; i <4; i++) {
            System.out.printf("Enter the quantities and price of %14s:",linkedList.get(i-1).getIphoneModel());
//            System.out.print("Enter the quantities and price of"+linkedList.get(i-1).getIphoneModel()+":  ");
            linkedList.get(i-1).setQuantity(scanner.nextInt());
            linkedList.get(i-1).setPrice(scanner.nextDouble());
        }
        System.out.println();

//手机库存汇总
        System.out.println("Summary of iPhones");
        System.out.println("----------------");
        System.out.println("iPhone                  Quantity              Prices");
        System.out.println("-----------------------------------------------------");
        for (int i = 1; i <4; i++) {
            System.out.printf("%-30s",linkedList.get(i-1).iphoneModel);
            System.out.printf("%-15d",linkedList.get(i-1).getQuantity());
            System.out.printf("%.2fn",linkedList.get(i-1).getPrice());
        }
        System.out.println("-----------------------------------------------------");

// 价格表
        System.out.println("Summary of iPones after the swaps");
        System.out.println("--------------------------------");
        swap(0,1,linkedList);
        System.out.println("iPhone                  Quantity              Prices");
        System.out.println("-----------------------------------------------------");
        for (int i = 1; i <4; i++) {
            System.out.printf("%-30s",linkedList.get(i-1).iphoneModel);
            System.out.printf("%-15d",linkedList.get(i-1).getQuantity());
            System.out.printf("%.2fn",linkedList.get(i-1).getPrice());
        }
        System.out.println("-----------------------------------------------------");

//填写订单
        System.out.println("Please place your order");
        System.out.println("---------------------");
        linkedList linkedList1=new linkedList();
        for (int i = 1; i <4; i++) {
            System.out.print("No of ");
            System.out.print(linkedList.get(i-1).iphoneModel);
            System.out.print(": ");
            IphoneOrder iphoneOrder=new IphoneOrder(String.valueOf(linkedList.get(i-1)));
            iphoneOrder.setQuantityofOrder(scanner.nextInt());
            Double cost=iphoneOrder.Quantity*linkedList.get(i-1).getPrice();
            iphoneOrder.setCost(cost);
            linkedList1.add(i-1,iphoneOrder);
        }

//订单汇总
        System.out.println("Summary of your order");
        System.out.println("---------------------");
        System.out.println("iPhone                  Quantity              Cost");
        System.out.println("-----------------------------------------------------");
        for (int i = 1; i <4; i++) {
            System.out.printf("%-30s",linkedList.get(i-1).iphoneModel);
            System.out.printf("%-15d",linkedList1.get(i-1).getQuantity());
            System.out.printf("%.2fn",linkedList1.get(i-1).getCost());
        }
        System.out.println("-----------------------------------------------------");
//清理库存
        System.out.println("Balance report");
        System.out.println("--------------");
        System.out.println("iPhone                                     Quantity                       Sold           Balance");
        System.out.println("------------------------------------------------------------------------------------------------");
        for (int i = 1; i <4; i++) {
            System.out.printf("%-45s",linkedList.get(i-1).iphoneModel);
            System.out.printf("%-30d",linkedList.get(i-1).getQuantity());
            System.out.printf("%-15d",linkedList1.get(i-1).getQuantity());
            System.out.printf("%dn",(linkedList.get(i-1).getQuantity()-linkedList1.get(i-1).getQuantity()));
        }
        System.out.println("------------------------------------------------------------------------------------------------");
   }

代码下载后，可直接运行