package?bean;
import?java.util.*;
public?class?Cart?{
	private?ListcartItemList=new?ArrayList<>（）;
	private?MapcartItemMap=new?HashMap<>（）;
	public?List?getCartItemList（）?{
		return?cartItemList;
	}
	public?void?addItemToCart（Item?it）?{
		CartItem?ci=cartItemMap.get（it.getItemid（））;
		if（ci==null）?{
			ci=new?CartItem（）;
			ci.setIt（it）;
			ci.setQuantity（1）;
			cartItemList.add（ci）;
			cartItemMap.put（it.getItemid（）?ci）;
		}
		else
			ci.incrementQuantity（）;
	}
	
	public?void?removeItemByItemid（String?itemid）?{
		CartItem?ci=cartItemMap.remove（itemid）;
		if（ci!=null）
			cartItemList.remove（ci）;
	}
	public?int?getNumberOfItems（）?{
		int?num=0;
		for（CartItem?ci:cartItemList）
			num+=ci.getQuantity（）;
		return?num;
	}
	public?double?getTotal（）?{
		double?total=0;
		for（CartItem?ci:cartItemList）?{
			total+=ci.getTotalprice（）;
		}
		return?total;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-07-06?15:02??Petstore\
?????文件?????????645??2020-06-02?00:10??Petstore\.classpath
?????文件?????????908??2020-04-30?09:59??Petstore\.project
?????目錄???????????0??2020-07-06?15:02??Petstore\.settings\
?????文件?????????567??2020-04-30?09:59??Petstore\.settings\.jsdtscope
?????文件?????????364??2020-04-30?09:59??Petstore\.settings\org.eclipse.jdt.core.prefs
?????文件?????????476??2020-04-30?09:59??Petstore\.settings\org.eclipse.wst.common.component
?????文件?????????345??2020-04-30?09:59??Petstore\.settings\org.eclipse.wst.common.project.facet.core.xml
?????文件??????????49??2020-04-30?09:59??Petstore\.settings\org.eclipse.wst.jsdt.ui.superType.container
?????文件???????????6??2020-04-30?09:59??Petstore\.settings\org.eclipse.wst.jsdt.ui.superType.name
?????目錄???????????0??2020-07-06?15:02??Petstore\build\
?????目錄???????????0??2020-07-06?15:02??Petstore\build\classes\
?????目錄???????????0??2020-07-06?15:02??Petstore\build\classes\bean\
?????文件????????2176??2020-06-10?10:57??Petstore\build\classes\bean\Cart.class
?????文件????????1367??2020-06-05?09:42??Petstore\build\classes\bean\CartItem.class
?????文件????????1353??2020-06-02?00:10??Petstore\build\classes\bean\Category.class
?????文件????????1150??2020-06-02?00:10??Petstore\build\classes\bean\Inventory.class
?????文件????????3416??2020-06-02?00:10??Petstore\build\classes\bean\Item.class
?????文件????????1634??2020-06-02?00:10??Petstore\build\classes\bean\Product.class
?????目錄???????????0??2020-07-06?15:02??Petstore\build\classes\business\
?????文件?????????676??2020-06-02?16:10??Petstore\build\classes\business\PetStore.class
?????文件????????1719??2020-06-02?16:42??Petstore\build\classes\business\PetStoreImpl.class
?????目錄???????????0??2020-07-06?15:02??Petstore\build\classes\dao\
?????文件?????????997??2020-06-02?00:10??Petstore\build\classes\dao\baseDao.class
?????文件????????3126??2020-06-02?00:10??Petstore\build\classes\dao\CategoryDao.class
?????文件????????3106??2020-06-02?00:10??Petstore\build\classes\dao\InventoryDao.class
?????文件????????4187??2020-06-02?00:10??Petstore\build\classes\dao\ItemDao.class
?????文件????????3486??2020-06-02?00:10??Petstore\build\classes\dao\ProductDao.class
?????目錄???????????0??2020-07-06?15:02??Petstore\build\classes\filter\
?????文件????????2173??2020-06-02?18:30??Petstore\build\classes\filter\LogFilter.class
?????目錄???????????0??2020-07-06?15:02??Petstore\build\classes\myservlet\
............此處省略102個文件信息