编程练习请老师帮忙完善一下代码

Product

package com.lding.io; import java.io.Serializable; public class Product implements Serializable {  private int id;  private String name;  private String categories;  private double price;  public Product(){ }  public Product(int id, String name, String categories, double price) {  this.id = id;  this.name = name;  this.categories = categories;  this.price = price; }  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; }  @Override  public String toString() {  return "产品ID:" + id +  "\n产品名称:" + name +  "\n产品属性:" + categories +  "\n产品价格:" + price +  "元\n"; } } 

ProductTest

package com.lding.io; import java.io.*; public class ProductTest {  public static void main(String[] args) { Product iphone= new Product(123,"iphone","telephone",4888.0); Product ipad=new Product(234,"ipad","computer",5088.0); Product macbook=new Product(345,"macbook","computer",10688.0); Product iwatch=new Product(256,"iwatch","watch",4799.0); FileInputStream fis=null; ObjectInputStream ois=null; FileOutputStream fos=null; ObjectOutputStream oos=null;  try { fis=new FileInputStream("lding.txt"); ois=new ObjectInputStream(fis); fos=new FileOutputStream("lding.txt"); oos=new

ObjectOutputStream(fos);<br><br>            oos.writeObject(iphone);<br>            oos.writeObject(ipad);<br>            oos.writeObject(macbook);<br>            oos.writeObject(iwatch);<br>            oos.flush();<br><br>            System.out.println(

"apple系列产品信息"

);<br>            Product temp=(Product) ois.readObject();<br>            System.out.println(temp);<br>            temp=(Product) ois.readObject();<br>            System.out.println(temp);<br>            temp=(Product) ois.readObject();<br>            System.out.println(temp);<br>            temp=(Product) ois.readObject();<br>            System.out.println(temp);<br><br>        }

catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (ClassNotFoundException e) { e.printStackTrace(); } finally {  try

{<br>                fis.close();<br>                fos.close();<br>                oos.close();<br>                ois.close();<br>            }

catch

(IOException e) {<br>                e.printStackTrace();<br>            }<br><br>        }<br>    }<br>}<br>

一娆Hacker 2020-12-24

源自：Java输入输出流 5-3 自由编程

收起

1回答

好帮手慕小脸 2020-12-24 16:36:57

同学你好，经测试运行代码是正确的，棒棒的，继续加油~

祝学习愉快~

收起回答

提问者一娆Hacker #1

老师帮忙完善一下

这里如何用循环写

2020-12-24 16:38:01
好帮手慕小脸回复提问者一娆Hacker #2

同学你好，在另一个问答中回复了你，记得前去查看：
https://class.imooc.com/course/qadetail/270824
祝学习愉快~

2020-12-24 16:51:20