java - 礼品登记循环程序

Question

我正在尝试编写一个程序，用于在礼品注册表中进行输入。用户可以输入所需数量的礼品以及可以购买的商店。一旦用户表示希望停止输入新商品，将显示所有礼品商品和商店的摘要。

这些是我当前的代码:

import java.util.*;
public class GiftRegistry
{
    public static void main(String[] args)
    {
        Scanner input = new Scanner(System.in);

        List<GiftRegistry> list = new ArrayList<GiftRegistry>();
        private String item;
        private String store;
        char ans;

        System.out.print("Do you wish to make a gift registry? (y/n) ");
        ans = input.nextLine().charAt(0);

        while (ans != 'n') 
        {
            GiftRegistry object = new GiftRegistry();
                System.out.print("Enter item: ");
                object.setItem(input.nextLine());
                System.out.print("Enter store: ");
                object.setStore(input.nextLine());
                System.out.print("Any more items? (y/n) ");
                ans = input.nextLine().charAt(0);
                list.add(object);
        }

         System.out.println("Gift Registry");
         for (GiftRegistry myObject : list) {
              System.out.print(myObject.getItem()+" - "+myObject.getStore());
              System.out.println();
    }
}

这是当前输入

Do you wish to make a gift registry? (y/n) y
Enter item: laptop
Enter store: Acer
Any more items? (y/n) y
Enter item: watch
Enter store: Swatch
Any more items? (y/n) n

它应该像这样输出:

Gift Registry
laptop - Acer
watch - Swatch

谁能帮我得到正确的输出谢谢

Answer 1

您可以创建自定义对象来保存您的值 -

class MyObject {
    private String item;
    private String Store;

    <getter & setters>

}

并将用户输入数据添加到列表中。

List<MyObject> list = new ArrayList<MyObject>();
...
while (ans != 'n') {
    MyObject object = new MyObject();
    System.out.print("Enter item: ");
    object.setItem(input.nextLine());
    System.out.print("Enter store: ");
    object.setStore(input.nextLine());
    System.out.print("Any more items? (y/n) ");
    ans = input.nextLine().charAt(0);
    list.add(object);
}

正确的打印方式是——

System.out.println("Gift Registry");
for (MyObject myObject : list) {
    System.out.print(myObject.getItem()+" - "+myObject.getStore());
    System.out.println();
}

输出将是 -

Gift Registry
laptop - Acer
watch - Swatch