ADVANCED OBJECT-ORIENTED PROGRAMMING

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Presentation transcript:

ADVANCED OBJECT-ORIENTED PROGRAMMING 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 1

Objectives Describe the benefits of object-oriented programming. Describe how inheritance promotes reuse. Describe how an object-oriented approach supports the use of frameworks. Identify appropriate uses for inheritance and polymorphism. Design classes that implement inheritance. Design abstract classes. Identify the relationships between classes. Use UML to describe relationships between classes. 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 2

A Generalization/Specialization Relationship 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 3

Class Diagram- Employee Example 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 4

Employee Class Pseudocode 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 5

Faculty Subclass Pseudocode 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 6

Staff Subclass Pseudocode 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 7

Overriding and Base Methods Employee ZapEmployee Faculty Staff ZapEmployee Faculty: Faculty1 Faculty1.ZapEmployee //actually calls Employee.ZapEmployee 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 8

Class Diagram- Account Example 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 9

Association - Works for 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 10

Examples of Multiplicity 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 11

Association - Holds 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 12

Aggregation – Example 1 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 13

Aggregation – Example 2 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 14

A Frame for Measurement Conversion 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 15

Composition – Example 1 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 16

Composition – Example 2 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 17

Event Planning Problem 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 18

Inner Classes Monthly Inventory private x Exceptions Write x 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 19

Summary In this unit, students learned: Benefits of inheritance Using inheritance Protected properties Overriding methods Polymorphism Abstract classes Binary association Self-association Multiplicity Aggregation relationships Composition relationships Inner classes 8/6/2019© 2006 ITT Educational Services Inc. Structured Programming: Unit 6 Slide 20