java并行化写入文件，保存顺序

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;

public class ParallelFileWriter implements Runnable {
    private String data;
    private String filename;

    public ParallelFileWriter(String data, String filename) {
        this.data = data;
        this.filename = filename;
    }

    @Override
    public void run() {
        try (BufferedWriter writer = new BufferedWriter(new FileWriter(filename, true))) {
            writer.write(data);
            writer.newLine();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        String[] dataArray = {"Data 1", "Data 2", "Data 3", "Data 4", "Data 5"};
        String filename = "output.txt";

        for (String data : dataArray) {
            Thread thread = new Thread(new ParallelFileWriter(data, filename));
            thread.start();
        }
    }
}