Chapter 9:Representing Object-Oriented Concepts with UML

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Representing Object-OrientedConcepts with UML

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Recognizing Representations ofSignificant UML Elements

• Exam Objective 2.1 Recognize the UML representation of classes, (including attributes and operations, abstract classes, and interfaces), the UML representation of inheritance (both implementation and interface), and the UML representation of class member visibility modifiers

(-/private and +/public).

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• The SCJA exam requires minimum knowledge of the UML Infrastructure and Superstructure specifications. Of the 14 UML diagram types, the class diagram is the only diagram type on the exam.• There is value in understanding UML diagrams and

features that are outside the scope of this exam.• So in your independent research on UML, don’t

ignore the other diagram types since this knowledge will surely come in handy later for you at work.

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• Attributes Compartment :[<visibility>] <variable_name> [: <type>] [= default_value]• Operations Compartment :[<visibility>] <method_name> [<parameter-list>] [: <return-type>]

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Recognizing Representations of UML Associations

• Exam Objective 2.2 Recognize the UML representation of class associations, compositions, association multiplicity indicators, and association navigation indicators.

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