package com.inmind.object_stream03;

import java.io.*;
import java.util.ArrayList;

/*
1. 将存有多个自定义对象的集合序列化操作，保存到list.txt文件中。
2. 反序列化list.txt ，并遍历集合，打印对象信息。
 */
public class Test13 {
    public static void main(String[] args) throws IOException, ClassNotFoundException {
        //创建集合保存学生对象
        ArrayList<Student> students = new ArrayList<>();
        students.add(new Student("张三", 18));
        students.add(new Student("李四", 20));
        students.add(new Student("王五", 19));

        //序列化保存集合
        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("list.txt"));
        oos.writeObject(students);
        oos.close();

        //创建反序列化流对象
        ObjectInputStream ois = new ObjectInputStream(new FileInputStream("list.txt"));
        Object o = ois.readObject();
        ArrayList objs = null;
        if (o instanceof ArrayList) {
            objs = (ArrayList) o;
        }

        //遍历集合，打印对象信息。
        for (Object obj : objs) {
            if (obj instanceof Student) {
                Student s = (Student) obj;
                System.out.println(s.name);
                System.out.println(s.age);
                System.out.println(s);
            }
        }
    }
}