{// member variables (HAS A) // constructor // member methods (CAND DO) public ISweepstakesManager DetermineManager(string answer) { ISweepstakesManager sweepstakesManager; switch (answer) { case "stack": SweepstakesStackManager sweepstakesStackManager = new SweepstakesStackManager(); sweepstakesManager = sweepstakesStackManager; break; case "queue": SweepstakesQueueManager sweepstakesQueueManager = new SweepstakesQueueManager(); sweepstakesManager = sweepstakesQueueManager; break; default: UserInterface.DisplayWrongInput(); string tryagain = UserInterface.AskQueueOrStack(); sweepstakesManager = DetermineManager(tryagain); break; } return(sweepstakesManager); }