catalog.java

网上购物系统 管理员模块和用户模块

package m;

import java.util.ArrayList;

import db.CataItemDB;

public class Catalog {
	private static ArrayList<CatalogItem> al;
	CataItemDB db=new CataItemDB();
	public Catalog()
	{
		al=new ArrayList<CatalogItem>();
		al=db.serall();
	}
	public ArrayList<CatalogItem> getArrayList()
	{
		return al;
	}
	public static CatalogItem getItem(int ID)
	{
		CatalogItem item;
		for (int i = 0; i < al.size(); i++) {
			item=(CatalogItem)al.get(i);
			if(item.getID()==ID)
			{
				return item;
			}
		}
		return null;
	}

}