java纸牌程序

3.(7.30CardShufflingandDealing)ModifytheapplicationofFig.7.11todealafive-cardpokerhand.ThenmodifyclassDeckOfCardsofFig.7.10toincludemethodsthatdeterminewhetherahandcontainsa)apairb)twopairsc)threeofakind(e.g.,threejacks)d)fourofakind(e.g.,fouraces)e)aflush(i.e.,allfivecard