我正在尝试从txt文件中提取特定的单词，输入为java的字符串

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

public class WordExtractor {
    public static void main(String[] args) {
        String filePath = "path/to/your/file.txt";
        String targetWord = "java";

        List<String> extractedWords = extractWordsFromFile(filePath, targetWord);
        for (String word : extractedWords) {
            System.out.println(word);
        }
    }

    public static List<String> extractWordsFromFile(String filePath, String targetWord) {
        List<String> extractedWords = new ArrayList<>();

        try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
            String line;
            while ((line = reader.readLine()) != null) {
                String[] words = line.split("\\b\\w+\\b");
                for (String word : words) {
                    if (word.equalsIgnoreCase(targetWord)) {
                        extractedWords.add(word);
                    }
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        return extractedWords;
    }
}