2013: J Paul Gibson TSP: Object Oriented Development CSC7322/Introduction.1

CSC7322: Object Oriented Development

J Paul Gibson, A207

paul.gibson@telecom-sudparis.eu

http://www-public.telecom-sudparis.eu/~gibson/Teaching/CSC7322/

Introduction/~gibson/Teaching/CSC7322/L1-Introduction.pdf

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Objects: from real world to code?

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OOP – A world of abstractions

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From module description

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From module description

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Web Site: continually updated

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Languages Evolve

NEXT?

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Fotis Georgatos

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History: OOP and its relation to other languages

http://bluebones.net/evolution/evo-prog-lang.png

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Languages that we will discuss in this module

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Note: each language has also evolved over time.

For example, JAVA has gone through 20+ updates since I started using it:

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HISTORY OOD (figure from http://uml-tutorials.trireme.com/uml_tutorial_1.htm)

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What is the OO paradigm?

A Brief History of the Object-Oriented Approach Luiz Fernando Capretz

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What is the OO paradigm?

Object-based?

Class-based?

Object-oriented?

Pure object-oriented?

Wegner, Peter. Dimensions of object-based language design.

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Some recommended reading … with more to come in later lectures

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What do the functional programmers think of OO?

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Pseudo Object-Oriented ProgrammingConsidered Harmful

Conrad WeisertInformation Disciplines, Inc., Chicago

If your only tool is a hammer, everything looks like a nail.

http://www.idinews.com/westfall.pdf

Abraham Kaplan

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Pseudo Object-Oriented ProgrammingConsidered Harmful

QUESTION:Write a « hello world » program (or programs) that illustrate your understanding of 1 or more key object oriented concepts.

Present the program and the concept(s) to the class

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Some PBL

You are to write some Java code that can represent a finite sequence of natural numbers eg:

• 2,3,4,5• 1,2,3• 6,7,8,9,10,11

You are to be able to: create a new sequence as the overlap of 2 other sequences overlap 2,3,4,5 and 1,2,3 = 2,3 create a new sequence as the interior of 2 other sequences interior 1,2,3 and 6,7,8,9,10,11 = 4,5,6 test if 2 sequences are equal output a sequence to the terminal/screen