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Practical Session 2 Class Design

Practical Session 2 Class Design. UML Basics UML - Unified Modeling Language. Class Diagram. Name Fields Methods. Car. - engineSize : int - maxSpeed : int. # getMaxSpeed() : int + drive(). Permissions notation : + public, - private, # protected. Relations. A. B.

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Practical Session 2 Class Design

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  1. Practical Session 2 Class Design

  2. UML BasicsUML - Unified Modeling Language

  3. Class Diagram Name Fields Methods Car - engineSize : int - maxSpeed : int # getMaxSpeed() : int + drive() Permissions notation: +public, - private, # protected.

  4. Relations A B A has an object of type B n C D C has a collection of objects of type D

  5. Relations example Car - engineSize : int - maxSpeed : int + drive() # getMaxSpeed() : int Wheel - airPressure: double + roll() 4

  6. Inheritance Base Car Derived Ferrari

  7. Interface Implementation Interface Vehicle Implementation Car

  8. Abstract Class Name* Fields Non Abstract Methods Abstract methods * Car * - engineSize : int - maxSpeed : int # getMaxSpeed() : int + drive() *

  9. Shape Hierarchy example

  10. ShapeBase * - canv : Canvas - offset : Point + draw() * + delete() * + move(p: Point) Shape draw() delete() move(p: Point) n Polygon Point Circle Triangle Rectangle Square

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