Question

如果用户进行诸如“汽车”或“扬声器”之类的搜索，我是否可以这样做，那么仍然可以找到拍卖？任何帮助将不胜感激。

private static void browseAuction（）{

    System.out.println("---Browse Auction---");

    String[] auctions = {"Car - Honda Civic VTI 1.8 Petrol", "Sony Bluetooth Speakers", "auctionObject" };

    java.util.List<String> list1 = java.util.Arrays.asList(auctions);


    System.out.println("Search::");
    String searchWord = S.next();

    if (list1.contains(searchWord)) {
        System.out.println("Auction Found : ");
        java.util.Arrays.toString(auctions);
    }else {
        System.out.println("No Match Found :");
    }

Answer 1

你可以尝试：

make_index_sequence

Answer 2

您可以编写一个执行不区分大小写的比较并调用它的方法，例如：

public boolean containsIgnoreCase(List<String> elements, String searchString){
    for(String element : elements){
        if(element.toLowerCase().contains(searchString.toLowerCase())){
            return true;
        }
    }
    return false;
}

在您的代码中：

if (containsIgnoreCase(list1,searchWord)) {
    System.out.println("Auction Found : ");
    java.util.Arrays.toString(auctions);
}else {
    System.out.println("No Match Found :");
}

这是使用Java 8的stream：

的另一个示例

public boolean containsIgnoreCase(List<String> elements, String searchString){
    return elements.stream()
            .filter(e -> e.toLowerCase().contains(searchString.toLowerCase()))
            .findFirst()
            .isPresent();
}

Answer 3

您应该搜索并检查所有拍卖。你可以像这样打印你的结果。试试这个。

    Scanner S = new Scanner(System.in);
    boolean found = false;
    String[] auctions = {"Car - Honda Civic VTI 1.8 Petrol", "Sony Bluetooth Speakers", "auctionObject" };
    java.util.List<String> list1 = java.util.Arrays.asList(auctions);

    System.out.println("---Browse Auction---");
    System.out.println("Search::");
    String searchWord = S.next().toLowerCase();

    //Searching all auctions for 'searchWord' key.
    for (int i = 0; i < list1.size(); i++){
        String currentAuction = list1.get(i).toLowerCase();
        if (currentAuction.contains(searchWord)) {
            System.out.println("Auction Found : " + list1.get(i));
            found = true;
        }
    }

    //There is no match for 'searchWord' key.
    if (!found)
        System.out.println("No Match Found :");

如果您搜索＆＃39; a＆＃39; 结果：

---Browse Auction---
Search::
a
Auction Found : Car - Honda Civic VTI 1.8 Petrol
Auction Found : Sony Bluetooth Speakers
Auction Found : auctionObject

如果您搜索＆＃39; car＆＃39;

---Browse Auction---
Search::
car
Auction Found : Car - Honda Civic VTI 1.8 Petrol

如果您搜索“无”＆＃39;

Search::
none
No Match Found :

字符串以匹配用户输入

3 个答案: