java - 在 Java 中扫描整个用户输入以查找匹配的关键字

Question

所以我一直在尝试寻找与用户输入的句子相匹配的关键字。我不想输入一个字符串，而是想输入整个句子并检查句子中的关键字。这是我编写的一些代码，但由于某种原因我无法扫描整个句子以查找匹配的关键字。

input = scanner.nextLine().toLowerCase();
    for (int i = 0; i < keywords.length; i++) {
        if (keywords[i].equalsIgnoreCase(input)) {
            System.out.println("Found keyword!");
            // TODO: You can optimize this
        }
    }

关键字列表是

 String[] keywords = { "day", "What book", "professor name", "office",
            "hour", "e-mail", "name", "major", "student e-mail",
            "group id", "group name", "lecture", "lecture room",
            "lecture time", "number of lectures", "current lecture",
            "topics of current lecture", "number of test",
            "date of a test", "number of assignments", "sure",
            "current assignment", "due day" };

Answer 1

 String[] keywords = {"day", "What book", "professor name", "office",
            "hour", "e-mail", "name", "major", "student e-mail",
            "group id", "group name", "lecture", "lecture room",
            "lecture time", "number of lectures", "current lecture",
            "topics of current lecture", "number of test",
            "date of a test", "number of assignments", "sure",
            "current assignment", "due day"};

        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine().toLowerCase();

        for (String keyword : keywords) {
            if (input.contains(keyword)) {

                System.out.println("Found keyword match  , " + keyword);

            }

尝试上面的代码，它会检查您的输入句子是否包含任何给定的关键字。