1. Object Oriented Concepts An overview and refresher for technology professionals

5. Perspectives

8. Why divide? Too much information! Too complicated for a Thursday evening!

13. Objects and Approaches

22. Encapsulation Slicing and dicing of business concepts into smaller, more manageable pieces

30. Abstraction When you don’t care about any specific business concept

35. Service developer’s “stub” object(s) c lass Mentos : IReactiveSubstance { public string ReactiveSubstance() { return "Caffine"; } public void React() { throw new NotImplementedException(); } } Interface Contract public interface IReactiveSubstance { string ReactiveSubstance(); void React(); } c lass DietPepsi : IReactiveSubstance { public string ReactiveSubstance() { return "Natural Flavors"; } public void React() { throw new NotImplementedException(); } }

36. class Bottle { private IReactiveSubstance _Liquid; private IReactiveSubstance _ObjectThatDoesntBelongHere; public Bottle( IReactiveSubstance liquid, IReactiveSubstance candy) { _Liquid = liquid; _ObjectThatDoesntBelongHere = candy; } public string Combine() { _Liquid.React(); _ObjectThatDoesntBelongHere.React(); return _Liquid.ReactiveSubstance() + _ObjectThatDoesntBelongHere.ReactiveSubstance(); } } Consumer developer’s code implementing and manipulating a n d m a n i p u l a t i n g both objects

39. Inheritance Associating common behaviors to like objects

41. Inheritance Behaviors: React ReactiveSubstance Behaviors: React ReactiveSubstance Behaviors: React ReactiveSubstance Common behaviors: React ReactiveSubstance

42. Polymorphism Modifying ancestor behavior, one method at a time

44. Polymorphism Implement React & ReactiveSubstance differently Behaviors: React ReactiveSubstance

46. Review

48. Questions???