java字符流读写数据

Question

输入一个学生信息写入文件,
使用字符流读取这个文件并将读取到的信息,
生成一个对象,在做字符流练习,请教大神,给一示例!!

Answer 1

就是序列化和反序列化，就是将对象转化字符序列，将字符序列转为对象的过程

package com.tx.test;

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.util.ArrayList;

import java.util.List;

public class test{

public static void main(String[] args) throws FileNotFoundException, IOException {

List<Student> list = new ArrayList<Student>();

list.add(new Student("as","男",14));

list.add(new Student("ass","男",18));

 ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("data/out.txt"));

 //输出流保存的文件名为 my.out ；ObjectOutputStream能把Object输出成Byte流

oos.writeObject(list);

oos.close();//序列化完毕

System.out.println("序列化完毕");

//反序列化

ObjectInputStream oin = null;

            oin = new ObjectInputStream(new FileInputStream("data/out.txt"));

            List<Student> stulist = null;

            try {

stulist = (List<Student>) oin.readObject();

} catch (ClassNotFoundException e) {

e.printStackTrace();

}

            for(Student s : stulist) {

            System.out.println(s.toString());

            }

            System.out.println("反序列化完成");

}

}