C# (CSharp) IDealerDb примеры использования

Пример #1

 public DealerApl()
 {
     this.dealerDb      = new DealerDb();
     this.scoreApl      = new ScoreApl();
     this.dealershipApl = new DealershipApl();
     this.campaignApl   = new IncentiveCampaignApl();
 }

Пример #2

 public DealerApl(IDealerDb dealerDb,
                  IDealershipApl dealershipApl,
                  IIncentiveCampaignApl campaignApl
                  )
 {
     this.dealerDb    = dealerDb;
     this.scoreApl    = new ScoreApl();
     this.campaignApl = new IncentiveCampaignApl();
 }