试题—什么是Java序列化如何实现序列化详解编程语言

 import java.io.Serializable;  
 public class Person implements Serializable { 
     //本类可以序列化 
     private String name ;  
     private int age ; 
     public Person(String name,int age) 
     {  
         this.name = name ; this.age = age ; 
     }  
     public String toString() 
     { 
         return "姓名：" + this.name + "，年龄" + this.age ; 
     }  
 } 

package org.lxh.SerDemo;  
import java.io.File; 
import java.io.FileOutputStream;  
import java.io.ObjectOutputStream ; 
public class ObjectOutputStreamDemo 
{ 
    //序列化  
    public static void main(String[] args) throws Exception  
    { 
        //序列化后生成指定文件路径  
        File file = new File("D:" + File.separator + "person.ser") ; 
        ObjectOutputStream oos = null ; 
        //装饰流（流） 
        oos = new ObjectOutputStream(new FileOutputStream(file)) ;  
        //实例化类  
        Person per = new Person("张三",30) ; 
        oos.writeObject(per) ; 
        //把类对象序列化 
        oos.close() ; 
    }  
}