java - java链表中单词的出现

Question

我必须在链接列表中执行单词出现，但不将单词存储到 map 中。我只被允许使用链接列表。输出:单词、出现次数、百分比。有人可以帮忙吗？

public class Linkedlist {

    private LinkedList<String> list = new LinkedList<String>();

    public void readFile() {

        File file = new File("words.txt");

        try {

            Scanner sc = new Scanner(file);

            String words;

            while (sc.hasNext()) {
                words = sc.next();
                words = words.toLowerCase();
                Collections.sort(list);

                if (words.length() >= 2) {
                    if (list.contains(words)) {


                }
            }

            sc.close();

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }

    public void showList() {
        System.out.println(list);
    }

    public static void main(String args[]) {

        Linkedlist abc = new Linkedlist();

        abc.readFile();
        abc.showList();
    }
}

Answer 1

这样的东西应该有效

    Collections.sort(words);
    String last = null;
    int n = 0;
    for (String w : words) {
            if (w.equals(last)) {
                n++;
            } else {
                if (last != null) {
                    System.out.printf("%s %d %.1f%%%n", last,  n, 100.0 * n / words.size());
                }
                last = w;
                n = 1;
            }
    }
    System.out.printf("%s %d %.1f%%%n", last,  n, 100.0 * n / words.size());