package serializable.cn;

import java.io.Serializable;

/*
 * 多個對象序例化
 */
public class Person implements Serializable {
    private String name;
    private int age;
    public Person(String name,int age){
        this.age = age;
        this.name = name;
    }
    public String toString (){
         
 
return "姓名:"+this.name+"，年齡："+this.age;
    }
}

package serializable.cn;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
public class SerializableDemo {
 
public static void main(String[] args) throws Throwable {
    //new 多個對象出來
      Person [] per = {new Person("張三",30),new Person("李四",40),new Person("王五",50)};
      //ser()接收的是數組類型的參數
      ser(per);
      //dser()返回的是一個數組
     Object[] ct = dser();
     //遍歷數組
     for (int i = 0; i < ct.length; i++) {
        
 
//  方法 1：System.out.println(ct[i]);
         //方法2 ：將數組內容 轉換為person對象
         Person p = (Person)ct[i];
         System.out.println(p);    
    }    
}
//序例化類，傳一個object類型的數組參數
    public static void ser(Object[] obj) throws Throwable{
        File f = new File("d:"+File.separator+"e.txt");
        OutputStream out = new FileOutputStream(f);
         ObjectOutputStream otp = new ObjectOutputStream(out);
         //void    writeObject(Object obj)   將指定的對象寫入 ObjectOutputStream。
         otp.writeObject(obj);         
         otp.close();
    }    
    //反序例化類,返回一個object 數組
      public static Object[] dser() throws Throwable{
       File f = new File("d:"+File.separator+"e.txt");
       InputStream ip = new FileInputStream(f);
       //new 一個對象輸入流
       ObjectInputStream oji = new ObjectInputStream(ip);
      Object[] jec = ( Object[])oji.readObject();
        oji.close();
        return jec;     
      }
}

序例化多個對象