Question

所以我的第一个问题已修复：CLICK HERE 感谢seanA的快速反应...

我现在的第二个问题是我不知道如何记录买方订购的数据所以在最终订单显示中它将显示如下内容： CLICK TO VIEW

这是PointofSale类的更新代码建议添加方法或任何需要的东西:)提前致谢

import java.util.*;
public class PointOfSale extends ProductDisplay
{   public double amount; public double total;
    public PointOfSale()
    {   System.out.print("\nPurchase Item(y/n)?:\t\t");
        Scanner sc = new Scanner(System.in);
        String line = sc.nextLine();
        if("y".equalsIgnoreCase(line)){
        OpenOrder();
            }
    }
    //=============================================
    public void OpenOrder() // New Order
    {   ArrayList<String> ProductList = new ArrayList<String>();
        ProductList.add("A001");    ProductList.add("A002");
        ProductList.add("A003");    ProductList.add("A004");
        ProductList.add("A005");
        System.out.print("Enter Product Code:\t\t");
        Scanner sc = new Scanner(System.in);
        String code = sc.next();
        if(ProductList.contains(code))
        { product.getProduct(code); EnterQuantity();        }
        else System.out.print("Product Code is Invalid\n"); System.exit(0);}
    //==============================================
    public void EnterQuantity()  //Entering Quantity
    {
        try{
            System.out.print("Enter Quantity:\t\t\t");
            Scanner sc = new Scanner(System.in);
            int quantity = sc.nextInt();
            amount = quantity * product.getPrice();
            total = total + amount;
            System.out.print("Amount:\t\t\t\t\t" + amount + "\n");
            AddItem(); }
        catch (InputMismatchException nfe)
            {System.out.print("\nInvalid Entry: Input must be a Number.\n"); System.exit(0);}
    }
    //==============================================
    public void AddItem()  //Adding Item
    {
        try{
            System.out.print("Add More Item(y/n)?:\t\t\t");
            Scanner sc = new Scanner(System.in);
            String item = sc.next();
            if("y".equalsIgnoreCase(item)){
            OpenOrder();}
            else if("n".equalsIgnoreCase(item)){
            System.out.print("Total:\t\t" + total + "\n");}
            }
        catch (InputMismatchException nfe)
            {System.out.print("\nInvalid Entry: Input must be a Number.\n"); System.exit(0);}
    }
    // Main Method
    public static void main(String[] args)
    {   new PointOfSale(); }
}

Answer 1

您需要存储在数组中输入的数据或使用java.util.Vector。

使用for循环以您想要的形式显示它

我希望它有所帮助。

：）

记录产品订购

1 个答案: