10.31

            PriorityQueue<Map.Entry<String, Integer>> pq = new PriorityQueue<>((a, b) ->
                    b.getValue().compareTo(a.getValue()));

            for (Map.Entry<String, Integer> entry : wordCountMap.entrySet()) {
                pq.offer(entry);
            }
            Scanner scanner = new Scanner(System.in);
            System.out.print("请输入前N个单词的数量：");
            int n = scanner.nextInt();
            BufferedWriter writer = new BufferedWriter(new FileWriter(outputFilePath));
            for (int i = 0; i < n && !pq.isEmpty(); i++) {
                Map.Entry<String, Integer> entry = pq.poll();
                String word = entry.getKey();
                int count = entry.getValue();
                System.out.println("Word: " + word + ", Count: " + count);
                writer.write("Word: " + word + ", Count: " + count);
                writer.newLine();
            }
            writer.close();
            reader.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
并进行了javaweb的增删改查的学习