30529957b0ef001b1b35bff033354ed6

来自「Internet 开发技术分章节代码和自己完成的课程设计全代码（在zuoye文件」· 代码 · 共 27 行

package bean;
import java.sql.Connection;
import java.util.Vector;
import bean.Item;
public class Book {
	 private Vector items = new Vector();
	 public Book()
		{			  
			items.addElement(new Item("0","d1",23,"u1"));
			items.addElement(new Item("1","d2",40,"u2"));
			items.addElement(new Item("2","d3",24,"u3"));
			items.addElement(new Item("3","d4",25,"u4"));
			items.addElement(new Item("4","d5",26,"u5"));
			items.addElement(new Item("5","d6",27,"u6"));			
		  
		}	 
	 synchronized public Vector getItems() { return items;  } 
     synchronized public Item getItem(String id) {
	    int index = Integer.parseInt(id);
	    return (Item)items.elementAt(index);
	  } 
     synchronized public void setItem(Item item,String id) {
	    int index = Integer.parseInt(id);
	    items.set(index,item);
	  }	
}