Java:对多个csv文件中的元素求和

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

public class CSVSum {
    public static void main(String[] args) {
        String[] csvFiles = {"file1.csv", "file2.csv", "file3.csv"}; // CSV文件列表

        double sum = 0.0; // 求和结果

        for (String csvFile : csvFiles) {
            try (BufferedReader reader = new BufferedReader(new FileReader(csvFile))) {
                String line;
                while ((line = reader.readLine()) != null) {
                    String[] elements = line.split(","); // 使用逗号分隔每个元素
                    for (String element : elements) {
                        double value = Double.parseDouble(element); // 将元素转换为浮点数
                        sum += value; // 求和
                    }
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        System.out.println("Sum: " + sum);
    }
}