package?com.newer.restrant.biz;

import?java.util.Collection;
import?java.util.HashMap;

import?com.newer.restrant.entity.CateBean;

public?class?Cart?{
	//HashMap存的鍵值對為
	private?HashMap?hm?=?new?HashMap（）;
	
	//判斷購買的是否存在
	public?boolean?isExist（int?cate_id）{
		return?hm.containsKey（cate_id）;
	}
	
	//加入菜
	public?boolean?addPro（CateBean?cate）{
		//加入前先判斷菜是否購買過
		if（isExist（cate.getCate_id（）））{
			return?false;
		}else{
			//沒有購買就加入到購物車
			CartItem?ci?=?new?CartItem（cate）;
			hm.put（cate.getCate_id（）ci）;
			//加入完成后，判斷菜是否加入成功
			if（isExist（cate.getCate_id（）））{
				return?true;
			}
		}
		return?false;
	}
	
	//修改商品的數量
	public?void?updateBcount（int?cate_idint?count）{
		
		//根據foodID找到相對應的CartItem修改數量
		CartItem?ci?=?（CartItem）hm.get（cate_id）;
		ci.setCount（count）;
	}
	
	//刪除購物車中的菜
	public?boolean?delete（int?cate_id）{
		//根據提供的cate_id，刪除對應的購物項（CartItem）
		hm.remove（cate_id）;
		//查看刪除是否成功
		if（isExist（cate_id））{
			return?false;
		}else{
			return?true;
		}
	}
	
	//清空購物車中所有的菜
	public?boolean?deleteAll（）{
		
		hm.clear（）;
		return?true;
	}
	
	//得到購買的所有菜
	public?Collection?getAllPro（）{
		//返回HashMap中所有的CartItems;
		Collection?c?=?hm.values（）;
		return?c;
	}
	
	//得到所有菜的總價
	public?float?getAllPrice（）{
		float?price?=?0f;
		//得到所有的購物項，得到所有菜的總價
		Collection?c?=?hm.values（）;
		//累加所有購買菜的價格，得到總價
		for（object?obj?:?c）{
			CartItem?ci?=?（CartItem）obj;
			price?+=?ci.getPrice（）;
		}
		return?price;
	}
	
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????340??2009-07-11?08:20??restrant\.classpath

?????文件????????297??2009-07-14?16:46??restrant\.mymetadata

?????文件???????1226??2009-07-10?09:21??restrant\.project

?????文件????????390??2009-07-12?18:11??restrant\.settings\org.eclipse.core.resources.prefs

?????文件???????2122??2009-07-11?08:35??restrant\src\com\newer\restrant\dao\ShowAllFood.java

?????文件???????1840??2009-07-14?16:49??restrant\src\com\newer\restrant\dao\UserLogin.java

?????文件???????1211??2009-07-11?22:18??restrant\src\com\newer\restrant\dao\OrderDao.java

?????文件???????1404??2009-07-10?11:55??restrant\src\com\newer\restrant\entity\CateBean.java

?????文件????????883??2009-07-10?11:10??restrant\src\com\newer\restrant\entity\UserBean.java

?????文件???????2360??2009-07-11?21:48??restrant\src\com\newer\restrant\entity\OrderBean.java

?????文件???????2715??2009-07-14?16:50??restrant\src\com\newer\restrant\servlet\LoginServlet.java

?????文件???????2246??2009-07-10?15:49??restrant\src\com\newer\restrant\servlet\ShowCate.java

?????文件???????2317??2009-07-10?16:31??restrant\src\com\newer\restrant\servlet\GetFoodDetil.java

?????文件???????2664??2009-07-12?15:47??restrant\src\com\newer\restrant\servlet\BuyCate.java

?????文件???????2254??2009-07-12?15:46??restrant\src\com\newer\restrant\servlet\ClearResource.java

?????文件???????3059??2009-07-11?22:16??restrant\src\com\newer\restrant\servlet\GenerateOrder.java

?????文件???????2375??2009-07-12?11:01??restrant\src\com\newer\restrant\servlet\DeleteOneCate.java

?????文件???????2993??2009-07-14?20:26??restrant\src\com\newer\restrant\servlet\ModifyOne.java

?????文件????????673??2009-07-10?14:14??restrant\src\com\newer\restrant\util\DBUtil.java

?????文件???????1686??2009-07-12?09:48??restrant\src\com\newer\restrant\biz\Cart.java

?????文件????????570??2009-07-11?17:43??restrant\src\com\newer\restrant\biz\CartItem.java

?????文件???????4192??2009-07-11?21:58??restrant\WebRoot\checkOut.jsp

?????文件???????3490??2009-07-12?09:11??restrant\WebRoot\details.jsp

?????文件???????1473??2009-07-10?14:39??restrant\WebRoot\foot.jsp

?????文件???????2763??2009-07-10?15:47??restrant\WebRoot\left.jsp

?????文件????????757??2009-07-10?11:31??restrant\WebRoot\login.js

?????文件???????3320??2009-07-11?09:28??restrant\WebRoot\login.jsp

?????文件???????2492??2009-07-12?08:52??restrant\WebRoot\logo.jsp

?????文件???????6392??2009-07-12?08:54??restrant\WebRoot\seeYou.jsp

?????文件???????4972??2009-07-14?20:29??restrant\WebRoot\shopCart.jsp

............此處省略166個文件信息