有没有一种方法可以将文本文件分解成字符，并将其传递给arrayList，然后将其作为参数提供给方法？

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

public class FileProcessor {
    public static void main(String[] args) {
        String filePath = "path/to/your/file.txt";
        ArrayList<Character> charList = readFile(filePath);
        processCharacters(charList);
    }

    public static ArrayList<Character> readFile(String filePath) {
        ArrayList<Character> charList = new ArrayList<>();
        try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
            int character;
            while ((character = reader.read()) != -1) {
                charList.add((char) character);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return charList;
    }

    public static void processCharacters(ArrayList<Character> charList) {
        // 在这里对字符进行处理
        for (Character character : charList) {
            // 处理逻辑
        }
    }
}