Pair Programming
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Pair Programming

A book on problem solving...

About the Book

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    • Agile
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About the Authors


The Agile community knows Yves Hanoulle from his many contributions, such as the public Agile conferences Google calendar, his Agile Thursday Quiz, the coach retreats and conferences he’s paired to organize, daily coaching questions via @Retroflections, and the Agile Games Google group, just to name a few. He promoted PairCoaching, an idea which has been adopted by many agile trainers and coaches. He’s constantly learning, and passing on what he learns as a coach and trainer to organizations large and small.

A self-identified change artist and first follower, one of Yves’ unique qualities is that he gives free lifetime support on anything he does: every client, everything he writes and presents, every workshop he leads.

Yves believes in maintaining a sustainable pace both professionally and personally. Yves has parentpair programmed an android game with his 13 year old son You can learn more about Yves at, and find him on social media as YvesHanoulle.

Clare Sudbery
Clare Sudbery

Clare Sudbery is a senior software engineer at She has 16 years of software engineering experience, but in the last ten years she has also spent time as a full time novelist and a secondary school maths teacher. She loves coding, teaching, writing and mentoring, but she had trouble persuading stroppy teenagers that maths is fun. She has a tendency to get over-excited about TDD, pair coding, maths, women in tech, music, symmetry, word games and floccinaucinihilipilification.

Clare is on a mission to awaken the inner geek in clever women everywhere.

Reader Testimonials

Vincent Vanderheeren
Vincent Vanderheeren

Agile change/ Kanban coach

The outcome of the Pair Programming workshop came as a surprise. My intention was to convince my team to use pair programming more often and on their own initiative. It really worked! They followed the course with the same passion as Yves taught it.

Dave Nicolette
Dave Nicolette

Software Development Heretic

The expressions on their faces say it all: The navigator has noticed the missing semicolon, but the driver has not.

Table of Contents

  • Recommendations
  • Foreword
  • Abstract
  • Trainer instructions
  • Small Exercises
    • Sum of digits - Min and Max
    • Symmetric numbers
    • Equilibrated numbers
    • Who and what
    • The number with the most divisors - Input
    • “Root-ing”
    • Gambling
    • Armstrong numbers
    • Fibonacci series
    • Multiplication table
    • Anadiploza
    • Number of digits
    • Two numbers with the most divisors
    • Divisible by the sum of digits
    • Count vowels
    • A large number - The sum of digits
    • Stuttering
  • Repeating Exercises
    • Gambling
    • Gambling 2
    • Gambling 3
    • Dice Game - One throw of the dice
    • Dice Game part 2 - Several throws of the dice
    • Dice Game part 3 - Rethrow some dice
    • Dice Game part 4 - Nobody likes to play alone
    • Dice Game part 5 - Role-playing
    • Dice Game part 6 - Role-playing-extension
    • Lotto predictor for Belgium
    • Lotto predictor for UK and Germany
  • Conway’s game of life
  • Fixing the bug
  • Gremlins
    • Provided Java-code
  • Example Story
  • Observation
  • Feedback
  • Library
    • Great books “every” developer should read
  • Acknowledgments
  • About the authors
  • Workshop Feedback
  • History
  • Countries
  • License

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