40eea3f2e6ee001b178095bc6b40daf6

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文件夹里）使用时

package bean;
import java.util.HashMap;

	public class Cart 
	{
		private String userId;//用户的标识
		private HashMap items;//购物车中的物品
		public Cart()
		{
			items=new HashMap();
		}
		public void addItem(String itemId,int quantity)
		{
			items.put(itemId,new Integer(quantity));
		}
		public void removeItem(String itemId)
		{
			items.remove(itemId);
		}
		public void updateItem(String itemId,int quantity)
		{
			if(items.containsKey(itemId))items.remove(itemId);
			items.put(itemId,new Integer(quantity));
		}
		public HashMap getItems()
		{
			return this.items;
		}
		public void setUserId(String userId)
		{
			this.userId=userId;
		}
		public String getUserId()
		{
			return this.userId;
		}
		public void clear()
		{
			items.clear();
		}
	}

			
		

}