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Real-World

Software

Development

A Project-Driven Guide to Fundamentals in Java

Raoul-Gabriel Urma

& Richard Warburton

A Project-Driven Guide to Fundamentals in Java

Real-World Software

Development

Raoul-Gabriel Urma and Richard Warburton

Beijing

Boston Farnham Sebastopol

Tokyo

Real-World Software Development

by Raoul-Gabriel Urma and Richard Warburton

Printed in the United States of America.

Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472.

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Production Editor:

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Copyeditor:

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Proofreader:

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December 2019:

First Edition

Indexer:

Ellen Troutman-Zaig

Interior Designer:

David Futato

Cover Designer:

Karen Montgomery

Illustrator:

Rebecca Demarest

Revision History for the First Edition

2019-12-02:

First Release

See

http://oreilly.com/catalog/errata.csp?isbn=9781491967171

for release details.

The O’Reilly logo is a registered trademark of O’Reilly Media, Inc.

Real-World Software Development,

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licenses or the intellectual property rights of others, it is your responsibility to ensure that your use

thereof complies with such licenses and/or rights.

978-1-491-96717-1

[LSI]

Table of Contents

Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Starting the Journey. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Themes

Java Features

Software Design and Architecture

SOLID

Testing

Chapter Summary

Iterating on You

The Bank Statements Analyzer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

The Challenge

The Goal

Bank Statements Analyzer Requirements

KISS Principle

final Variables

Code Maintainability and Anti-Patterns

God Class

Code Duplication

Single Responsibility Principle

Cohesion

Class-Level Cohesion

Method-Level Cohesion

Coupling

Testing

Automated Testing

Using JUnit

iii

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