如何在每次用java创建自定义类对象数据模型时将其保存到不同的文件中？

import java.io.*;

public class ObjectToFileExample {
    public static void main(String[] args) {
        // 创建自定义类对象
        CustomObject obj1 = new CustomObject("Object 1");
        CustomObject obj2 = new CustomObject("Object 2");

        // 将对象保存到不同的文件中
        saveObjectToFile(obj1, "file1.dat");
        saveObjectToFile(obj2, "file2.dat");
    }

    private static void saveObjectToFile(CustomObject obj, String fileName) {
        try {
            // 创建文件输出流
            FileOutputStream fileOut = new FileOutputStream(fileName);

            // 创建对象输出流
            ObjectOutputStream objOut = new ObjectOutputStream(fileOut);

            // 写入对象到文件
            objOut.writeObject(obj);

            // 关闭流
            objOut.close();
            fileOut.close();

            System.out.println("Object saved to file: " + fileName);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

// 自定义类需要实现Serializable接口
class CustomObject implements Serializable {
    private String name;

    public CustomObject(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }
}