创建拍卖列表(java)

Question

我试图为拍卖创造一个代码，以便当拍卖开始时，狗会得到一个数字。第一次拍卖将获得第一名，第二名，以此类推。

问题是，拍卖的代码没有按拍卖列出狗的名单。相反，它是按登记列出的。

例如:注册狗

• 鲍伊
• 安娜
• 玛雅

(拍卖过程)

命令:开始拍卖

狗名:玛雅

输出:玛雅已被拍卖#2

命令:开始拍卖

狗名:鲍伊

输出: Bowie已被拍卖#0

这是我的密码：

private void startAuction() {

    boolean current = false;

    do {
        System.out.println("Dog name: ");
        String dogName = scan.nextLine().toLowerCase().trim();

        if (dogName.isEmpty()) {
            System.out.println("Error: Name can't be empty.");
            continue;           
        }

        for (int i = 0; i < dogs.size(); i++) {
            if (dogName.equals(dogs.get(i).getName())) {
                auction.add(new Auction(dogName));

                System.out.printf(dogName + " has been put up for auction in auction #%d", i);
                System.out.println();
                current = true;
                return;
            }
        }

        if (current == false) {
            System.out.println("Error: no such dog in the register");
        }
    } while(true);

我是个初学者，有点困惑。有什么办法解决这个问题吗？

Answer 1

这里的问题是，在将狗的名字拍卖后，你在列表中搜索那只狗，打印狗在列表中的位置的索引。要解决这个问题，您需要做的是使用另一个计数器变量来计数被拍卖的狗的数量，每次递增。代码应该如下所示：

    private void startAuction() {

    boolean current = false;
    int auctionCount = 1;//Declare the current auction we are on

    do {
        System.out.println("Dog name: ");
        String dogName = scan.nextLine().toLowerCase().trim();

        if (dogName.isEmpty()) {
            System.out.println("Error: Name can't be empty.");
            continue;           
        }

        for (int i = 0; i < dogs.size(); i++) {
            if (dogName.equals(dogs.get(i).getName())) {
                auction.add(new Auction(dogName));

                //Use the auction count here so that it starts at 1 and increases 
                System.out.printf(dogName + " has been put up for auction in auction #%d", auctionCount);from there
                System.out.println();
                auctionCount++;//Make sure the next auction has a number that is one larger
                current = true;
                return;
            }
        }

        if (current == false) {
            System.out.println("Error: no such dog in the register");
        }
    } while(true);
}