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CODE KATAS
THE ZEN OF CODING
by /Paul Gower @paulmgower
ABOUT ME
Computer Science Degree
Alltel Client/Server University -
Developing Enterprise Software for over 12 years
Worked...
OVERVIEW
What is a Code Kata?
Why Code Kata?
How to get involved in the community.
Let's Code Kata!
WHAT IS A CODE KATA?
( wikipedia)
Code Kata is a term coined by Dave
Thomas, co-author of the book The
Pragmatic Programme...
WHY CODE KATA?
( Steve Yegge blog)
Contrary to what you might believe, merely
doing your job every day doesn't qualify as
...
EFFORTFUL STUDY
( Jeff Atwood blog)
...tackling problems at the very edge of
your ability. Stuff you may have a high
proba...
CENTRAL ARKANSAS
CODE KATA
HTTP://CODEKATA.CO
MULTIPLE PHASES
PHASE 1
SUNDAY, AUGUST 25, 2013
Bi-weekly Code Kata posted on Sunday afternoon to the
website
Post your answer following t...
PHASE 2
IN THE FUTURE
Community will rank the best solution
Sponsorship to give the highest voted answer a prize
A regular...
LET'S CODE KATA
STRING REVERSE
Imagine a time when you didn't have a framework method that would take a string as input an...
FIZZBUZZ
FizzBuzz is an old school kata that has been floating around the internet for a while. If you have solved this
pr...
REVERSED BINARY NUMBERS
Yi has moved to Sweden and now goes to school here. The first years of schooling she got in China,...
RESOURCES
- our new website to do code katas! (Big thanks goes
to for setting this up!)
- a good website with information ...
THE END
Paul Gower
@paulmgower
paul.gower@gmail.com
http://paulgower.me
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Code Kata

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Do you ever feel like you are just spinning your wheels at work doing the same thing? Maybe you are solving problems but never really increasing your knowledge? The tech industry is constantly changing and evolving and to keep up with the latest technologies can be difficult. Code Kata is a technique that can help sharpen your skills and stay up with new technologies. Whether you are an experienced software developer or fresh out of college, come join us to learn more about how code kata can help you sharpen your skills as a software developer. If you have a laptop bring it! We plan to pair-program through some actual code katas. It will be a fun night of learning and as always a great time to get to know more people in the Central Arkansas Tech Community.

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Transcript of "Code Kata"

  1. 1. CODE KATAS THE ZEN OF CODING by /Paul Gower @paulmgower
  2. 2. ABOUT ME Computer Science Degree Alltel Client/Server University - Developing Enterprise Software for over 12 years Worked at Big, Small, and now a Consulting Company Dr. Dobbs Article
  3. 3. OVERVIEW What is a Code Kata? Why Code Kata? How to get involved in the community. Let's Code Kata!
  4. 4. WHAT IS A CODE KATA? ( wikipedia) Code Kata is a term coined by Dave Thomas, co-author of the book The Pragmatic Programmer, in a bow to the Japanese concept of kata in the martial arts. A code kata is an exercise in programming which helps a programmer hone their skills through practice and repetition. Kata (programming)
  5. 5. WHY CODE KATA? ( Steve Yegge blog) Contrary to what you might believe, merely doing your job every day doesn't qualify as real practice. practicing programming ( Scientific American article) Ericsson argues that what matters is not experience per se but "effortful study," which entails continually tackling challenges that lie just beyond one's competence. The Expert Mind
  6. 6. EFFORTFUL STUDY ( Jeff Atwood blog) ...tackling problems at the very edge of your ability. Stuff you may have a high probability of failing at. The Ultimate Code Kata
  7. 7. CENTRAL ARKANSAS CODE KATA HTTP://CODEKATA.CO MULTIPLE PHASES
  8. 8. PHASE 1 SUNDAY, AUGUST 25, 2013 Bi-weekly Code Kata posted on Sunday afternoon to the website Post your answer following the instructions that will be listed in the post. codekata.co
  9. 9. PHASE 2 IN THE FUTURE Community will rank the best solution Sponsorship to give the highest voted answer a prize A regular meetup to Pair-Program Code Katas
  10. 10. LET'S CODE KATA STRING REVERSE Imagine a time when you didn't have a framework method that would take a string as input and return the reverse of it. TASK Create a method that takes a string as an input and returns the reverse of the string. Use whatever programming language you prefer to solve this problem. INPUT Use the following items as example inputs: "Hello World" "Here we go." "Code Kata is fun!" OUTPUT These are the outputs you should expect from the above inputs: "dlroW olleH" ".og ew ereH" "!nuf si ataK edoC"
  11. 11. FIZZBUZZ FizzBuzz is an old school kata that has been floating around the internet for a while. If you have solved this problem before then we encourage you to use a different language. TASK Your task is to write a program that prints the numbers from 1 to 100. But for multiples of three print "Fizz" instead of the number and for the multiples of five print "Buzz". For numbers which are multiples of both three and five print "FizzBuzz". Use whatever programming language you prefer to solve this problem. INPUT None. OUTPUT Output either i, "Fizz", "Buzz" or "FizzBuzz" depending on if the i is divisible by three or five. REFERENCE Thanks to for this .Jeff Atwood's blog Kata
  12. 12. REVERSED BINARY NUMBERS Yi has moved to Sweden and now goes to school here. The first years of schooling she got in China, and the curricula do not match completely in the two countries. Yi likes mathematics, but now... The teacher explains the algorithm for subtraction on the board, and Yi is bored. Maybe it is possible to perform the same calculations on the numbers corresponding to the reversed binary representations of the numbers on the board? Yi dreams away and starts constructing a program that reverses the binary representation, in her mind. As soon as the lecture ends, she will go home and write it on her computer. TASK Your task will be to write a program for reversing numbers in binary. For instance, the binary representation of 13 is 1101, and reversing it gives 1011, which corresponds to number 11. Use whatever programming language you prefer to solve this problem. INPUT The input contains a single line with an integer N, 1 ≤ N ≤ 1000000000. OUTPUT Output one line with one integer, the number we get by reversing the binary representation of N. REFERENCE Thanks to for this . They have some great puzzles on their site and I'm sure we'll use some of them as we continue to code kata. spotify's job site Kata
  13. 13. RESOURCES - our new website to do code katas! (Big thanks goes to for setting this up!) - a good website with information about Code Katas (older but still informative) by by by - Steve McConnell's website is a great resources to learn more about how to be a better software developer. http://codekata.co @_davidhudson http://www.codekata.com The Ultimate Code Kata Jeff Atwood Practicing Programming Steve Yegge Given I like reading Source Code by the fire with my smoking jacket and brandy snifer, a list of books Scott Hanselman http://www.stevemcconnell.com
  14. 14. THE END Paul Gower @paulmgower paul.gower@gmail.com http://paulgower.me
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