尝试使用递归从arraylist中的文件添加单词

import java.io.File;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;

public class WordAdder {
    public static void main(String[] args) {
        ArrayList<String> words = new ArrayList<>();
        addWordsFromFile("path/to/file.txt", words);
        System.out.println(words);
    }

    public static void addWordsFromFile(String filePath, ArrayList<String> words) {
        File file = new File(filePath);
        try {
            Scanner scanner = new Scanner(file);
            while (scanner.hasNext()) {
                String word = scanner.next();
                words.add(word);
            }
            scanner.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }
}

public static void addWordsFromFiles(ArrayList<String> filePaths, ArrayList<String> words) {
    if (filePaths.isEmpty()) {
        return; // 递归终止条件：文件路径列表为空
    }

    String filePath = filePaths.remove(0); // 移除并获取第一个文件路径
    addWordsFromFile(filePath, words); // 调用addWordsFromFile方法处理该文件

    addWordsFromFiles(filePaths, words); // 递归调用自身处理剩余的文件路径
}