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Object Oriented Programming

Object Oriented Programming. Lecture 10: UML & CRC. To Do. Read Chapter 3 Think about the questions. Notations. CRC cards Unified Modelling Language (UML) Booch, Grady and Rumbaugh Class Diagrams Sequence Diagrams Object Diagrams. CRC Card.

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Object Oriented Programming

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  1. Object Oriented Programming Lecture 10: UML & CRC

  2. To Do • Read Chapter 3 • Think about the questions

  3. Notations • CRC cards • Unified Modelling Language (UML) • Booch, Grady and Rumbaugh • Class Diagrams • Sequence Diagrams • Object Diagrams

  4. CRC Card • Class, Responsibility and Collaboration Cards • Ward Cunningham and Kent Beck (Tectronix) • 4 by 6 inch index cards (small) Class Name Responsibilities / Secrets Collaborations

  5. Class Diagrams • Boxes represent classes • Name of class • Attributes – or data held in the class • Operations – or methods provided by the class • Lines represent associations between classes • Arrows on the lines represent navigability • Numbers on the lines represent multiplicity • Open arrow heads show generalisation or viewed the other way inheritance

  6. Class Diagram Name Attributes (Data) Operations (Methods) Name Attributes (Data) Operations (Methods) 1 * Name Attributes (Data) Operations (Methods) Name Attributes (Data) Operations (Methods)

  7. ballWorld ball one ball two paint(Graphics) paint(Graphics) paint(Graphics)

  8. : BallWorld colour: green ballone : Ball colour: red balltwo : Ball colour: green

  9. : BallWorld colour: green ballone : Ball colour: red balltwo : Ball colour: green exitbutton caption: Exit

  10. Practicals for week 3 • Chapter 6 questions 1-14 • Exercises 1-4, 6 • To be verified are exercises 1-4 as a single program and 6 as a second program

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