1. Object Oriented Design and Programming Alan Goude Email: a.goude@shu.ac.uka.goude@shu.ac.uk Room: Sheaf 9323

2. Unit delivery and assessment weeks 1 - 6 – 2hr lectures, 1hr labs weeks 7 -12 – 1hr lectures, 2hr labs 100% coursework assessment – Two Assignments each contributing 50%

3. Topics - The object oriented approach OOA,OOD and OOP C++ Stream Input/Output Reference variables Classes – Terminology – Class members – data and functions(methods) – Class access – public, private & protected – Separation of interface from implementation – Constructor and destructors – function overloading Dynamic memory allocation Object aggregation and composition UML notation for classes and class aggregation.

4. Topics - Operator overloading Additional class features – Friend functions – Static members Inheritance Polymorphism Abstract classes, Virtual functions Templates, Standard Template Libray & More UML (time permitting)

5. Books Thinking in C++ by Bruce Eckel – Vol.1 (basics) and Vol.2 (advance features) – Assumes knowledge of ‘C’ – Free Electronic versions available from- http://www.mindview.net/Books C++ : How to program by Deitel & Deitel – See info at http://www.deitel.com/http://www.deitel.com/ – Fourth Edition available Oct 2002 – Includes a version of Microsoft Visual C++

6. Other books and information sources Object-Oriented Analysis and Design with Applications by Grady Booch Unified Modelling Language User Guide by Grady Booch, Ivar Jacobson, James Rumbaugh UML Distilled: A Brief Guide to the Standard Object Modeling Language (2nd Edition) by Martin Fowler, Kendall Scott My Web page - http://www.shu.ac.uk/schools/eng/teaching/ag1 http://www.shu.ac.uk/schools/eng/teaching/ag Try a www.google.com searchwww.google.com

7. Object Oriented Design and Programming OOD – Major proponents and developers – Grady Booch, Ivar Jacobson, and James Rumbaugh – Unified Modelling Language (UML) OOP – Several OOP languages – Smalltalk, Eiffel. Pure OOPL – C++, Java. Said to be object based OOPL

8. Software Tools Object Oriented Programming (OOP) – C++ – Using Microsoft Visual Studio C++ compiler Object Oriented Design (OOD) – UML (Unified Modelling Language)

9. Object Model Key ideas  Abstraction  Encapsulation  Modularity  Hierarchy Minor elements of the object model – Typing (language dependent – data typing) – Concurrency (OS dependent) – Persistence

10. Abstraction Helps to deal with complexity by focusing on certain features and suppressing others. Focus on interface (outside view) Separate behaviour from implementation

11. Hierarchy A way of ordering abstractions Object hierarchical abstractions (“HAS A” or “PART OF” relationship) Interfaces and behaviours at each level Higher levels are more abstract

12. Encapsulation Also known as information hiding Hides the details of the implementation Complementary to abstraction

13. Abstraction, Encapsulation and Software Design Interface should be simple, providing the required behaviour. User is presented with high level abstract view. The detail of the implementation is hidden from the user. The designer may change the implementation keeping the interface the same.

14. Modularity A common “Divide and conquer” approach Partitions a problem into sub-problems reducing complexity Modularity packages abstractions into discrete units In C++ classes are the basic modules providing encapsulation and abstraction

15. Re-usability - Inheritance Class Hierarchies Derived class inherits properties and behaviour of a base class Allows code re-use. Derived classes can have – additional properties and behaviour, – or over-ride inherited behaviour.