如何将导出的java对象的格式转换为文件？

import java.io.FileOutputStream;
import java.io.ObjectOutputStream;

public class SerializeObjectToFile {
    public static void main(String[] args) {
        // 创建要序列化的对象
        Student student = new Student("John", 18, "123456789");
        
        // 序列化对象到文件
        try {
            FileOutputStream fileOut = new FileOutputStream("student.ser");
            ObjectOutputStream out = new ObjectOutputStream(fileOut);
            out.writeObject(student);
            out.close();
            fileOut.close();
            System.out.println("Object serialized successfully.");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import java.io.FileInputStream;
import java.io.ObjectInputStream;

public class DeserializeObjectFromFile {
    public static void main(String[] args) {
        // 反序列化对象
        try {
            FileInputStream fileIn = new FileInputStream("student.ser");
            ObjectInputStream in = new ObjectInputStream(fileIn);
            Student student = (Student) in.readObject();
            in.close();
            fileIn.close();
            System.out.println("Object deserialized successfully.");
            System.out.println("Name: " + student.getName());
            System.out.println("Age: " + student.getAge());
            System.out.println("ID: " + student.getId());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}