从csv文件JAVA中删除用户

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

public class CSVUserDeletion {
    public static void main(String[] args) {
        String csvFile = "users.csv";
        String line;
        String csvSplitBy = ",";
        List<String[]> userData = new ArrayList<>();

        // 读取csv文件并存储为数据结构
        try (BufferedReader br = new BufferedReader(new FileReader(csvFile))) {
            while ((line = br.readLine()) != null) {
                String[] user = line.split(csvSplitBy);
                userData.add(user);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        // 查找并删除用户
        String userToDelete = "John"; // 要删除的用户名
        List<String[]> updatedData = new ArrayList<>();
        for (String[] user : userData) {
            if (!user[0].equals(userToDelete)) { // 根据用户名判断是否为要删除的用户
                updatedData.add(user);
            }
        }

        // 更新csv文件
        try (BufferedWriter bw = new BufferedWriter(new FileWriter(csvFile))) {
            for (String[] user : updatedData) {
                bw.write(String.join(csvSplitBy, user));
                bw.newLine();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        System.out.println("用户删除成功！");
    }
}