例10.txt

这是一本java基础教程 对新手上路有很大帮助

import java.io.*;
class Goods implements Serializable{
    String name=null;
    Goods(String name){
       this.name=name;
    }
    public void setName(String name){
       this.name=name;
    }
   public String getName(){
       return name;
    }
}
class Shop implements Serializable{
    Goods goods[ ];
    public void setGoods(Goods s[ ]){
        goods=s;
    }
    public Goods[ ] getGoods(){
        return goods;
    }
}
public class Example9_10{
    public static void main(String args[ ]){
        Shop shop1=new Shop();
        Goods s1[]={new Goods("TV"),new Goods("PC")};
        shop1.setGoods(s1);
        try{   ByteArrayOutputStream out=new ByteArrayOutputStream();
              ObjectOutputStream objectOut=new ObjectOutputStream(out);
              objectOut.writeObject(shop1);  
              ByteArrayInputStream in=new ByteArrayInputStream(out.toByteArray());
              ObjectInputStream objectIn=new ObjectInputStream(in);
              Shop shop2=(Shop)objectIn.readObject();
              Goods good1[ ]=shop1.getGoods();
              Goods good2[ ]=shop2.getGoods();
              System.out.println("shop1中的商品:");
              for(int i=0;i<good1.length;i++)
                  System.out.println(good1[i].getName());
              System.out.println("shop2是shop1的一个克隆,shop2中的商品:");
              for(int i=0;i<good2.length;i++)
                  System.out.println(good2[i].getName());
              Goods s2[]={new Goods("棉花"),new Goods("西服"),new Goods("篮球")};
              shop2.setGoods(s2);  //shop2更改了其中的商品，但不会影响shop1中的商品
              good1=shop1.getGoods();
              good2=shop2.getGoods();
              System.out.println("目前,shop2中的商品:");
              for(int i=0;i<good2.length;i++)
                  System.out.println(good2[i].getName());
              System.out.println("目前,shop1中的商品:");
              for(int i=0;i<good1.length;i++)
                  System.out.println(good1[i].getName());
        }
        catch(Exception event){
              System.out.println(event);
        }
    }
}