package auction.impl; import auction.Auction; import auction.User; public class AuctionFactory { private static AuctionFactory eInstance = new AuctionFactory(); public Auction createAuction(User seller, String name, String description, int startDate, int endDate, int minimumBid){ return null; } public Auction createReservedAuction(User creator, String name, String description, int startDate, int endDate, int minimumBid,int reservePrice){ return null; } public static AuctionFactory getEInstance() { return eInstance; } }