请问代码是否符合题目要求？

相关代码：

​package com.imooc.files;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

public class Product implements Serializable{
//私有属性：id，name,categories,price

	private int id;
	private String name;
	private String categories;
	private double price;
//无参构造

	private Product() {

	}
//带参构造

	public Product(int id, String name, String categories, double price) {
		super();
		this.id = id;
		this.name = name;
		this.categories = categories;
		this.price = price;
	}
//getter和setter构造

	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getCategories() {
		return categories;
	}
	public void setCategories(String categories) {
		this.categories = categories;
	}
	public double getPrice() {
		return price;
	}
	public void setPrice(double price) {
		this.price = price;
	}
//toString构造

	@Override
	public String toString() {
		return "apple系列产品信息：\n产品ID：" + id + "\n产品名称：" + name + "\n产品属性：" + categories + "\n产品价格：" + price + "";
	}

	public static void main(String[] args) {
	Product product1=new Product(123,"iphone","telephone",4888.0);
	Product product2=new Product(234,"ipad","computer",5088.0);
	Product product3=new Product(345,"macbook","computer",10688.0);
	Product product4=new Product(256,"iwatch","watch",4799.0);
	try {
		FileOutputStream fos=new FileOutputStream("C:\\Users\\skiiiiiiii\\Desktop\\imooc.txt");
		ObjectOutputStream oos=new ObjectOutputStream(fos);
		FileInputStream fis=new FileInputStream("C:\\Users\\skiiiiiiii\\Desktop\\imooc.txt");
		ObjectInputStream ois=new ObjectInputStream(fis);
		//将product对象信息写入文件中
		oos.writeObject(product1);
		oos.writeObject(product2);
		oos.writeObject(product3);
		oos.writeObject(product4);
		oos.flush();
		//读取信息
		try {
			Product product=(Product)ois.readObject();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		fos.close();
		oos.close();
		fis.close();
		ois.close();
		System.out.println(product1);
		System.out.println(product2);
		System.out.println(product3);
		System.out.println(product4);
	} catch (FileNotFoundException e) {
		e.printStackTrace();
	} catch (IOException e) {
		e.printStackTrace();

	}

}
}