Posts

Hello Everybody. I’d like to introduce T.E.A.S. to you. This is something I came up with yesterday which requires a lot of fantasy some good thinking planning and enthusiastic people. So, let’s get started. What is it about? Testing Exploration Adventure Session is about. Testing! There. No real surprise, eh? TEAS has it’s roots in RPGs. Role Playing Games. If you ever heard or read about M.A.G.U.S. or the more known Dungeons & Dragons you will have a better understanding of the concept behind this phenomena. ...

Hello folks. Today I want to write about a little trick I learned. If you are working with legacy code and you don’t have the chance to eliminate core design problems, you can use this little pattern to help you out. Problem Problem is that you have a class that has a gazillion collaborators and at some point in time one of the clever devs thought it would be a cool idea to do dependancy injection via the constructor. We all know that doing this makes the class immutable which is very good for a number of reasons. However it doesn’t provide a flexible solution if you want to leave out one or two collabs. For that your would have to create Adapter constructors and chain them upwards which would get very ugly very fast. While using JavaBeans getters and setters can leave your class in a harmful state like not at all or partially initialised. ...

Hello everybody. So yesterday I was on a little gathering called Coderetreat. If you look at the link you can read everything about it. If not, I’ve provided a short description. What it is about? So what is codereatreat about? In short it’s about programmers getting together and honing and practicing there skills in order to become more at what they are doing. It’s a practice run with great people. TDDing one problem the whole day long with constantly applied constraints. ...

Hello folks. Here is a little graphic I made to show what my brain is up to the whole day long. Excuse me for the lack of my colouring skills. Enjoy ![Brain]1 Thanks for reading! Gergely. http://dl.dropbox.com/u/7604030/barinColored.jpg ↩︎

Hi folks. Today I want to write to you about learning something with a visual mind. There are a gazillion posts out there that tell you how to learn something with a visual mind. However, there are only a few actually describing how to learn something as complicated and logical as programming. How do you draw up a function? How do you draw up a cycle or a structure? Actually these are really easy. A cycle? No problem. What’s a circle if not a cycle? Structure? This should be an easy one. You can draw a whole building and then place building blocks into it. ...

So today at 8-12PM I had a great session with two friends of mine. It was awesome. Like a mini code retreat. We set down in a musky bar, drank wine and beer and cider, and decided to practice some TDD with the well known problem of Conway’s Game of Life. This challenge is really interesting. I never done it before, ever. So it was a really good practice for me. ...

Aka, what you can do if you are facing and unknown framework / system you have to work with for quite some time. Get intimate You are going to live with this system for a while. The best thing you can do is getting to know it better. You have to get it to know like you would approche a fine lady. You have to ask it questions look after it, how it feels how its day was. Have to listen to what it tells you, you have to read its diary if necessary. ...

My solution to the String Wrap Kata. The goal is to have it wrap a text on a given column width. It is not the best solution but this is my first try. I did it with TDD so there were tests first, which I’m not going to copy in.. public class WrapKata { public String wrap(String input, int columnSize) { if (input.length() <= columnSize) return input; else { return wrapLines(input, columnSize); } } private String wrapLines(String input, int columnSize) { int breakPoint = getBreakPoint(input, columnSize); String head = createHead(input, breakPoint); String tail = createTail(input, breakPoint); return head += "\n" + wrap(tail, columnSize); } private String createTail(String input, int breakPoint) { return input.substring(breakPoint).trim(); } private String createHead(String input, int breakPoint) { return input.substring(, breakPoint).trim(); } private int getBreakPoint(String input, int columnSize) { if (input.contains(" ")) { return input.lastIndexOf(' ', columnSize); } else { return columnSize; } } }

Hi everybody. Today I want to talk to you about.. Well.. How to read a professional book for slow learners without too much waste of time. Let us start at the. well. the beginning. How do you normally read a book if you want to memorize it properly. You read it once and then re read the whole thing again until it gets in your head? Or do you have another strategy? ...

Hi. Today I want to talk about a common problem in many frameworks I encountered over the course of my carrier as a Java dev / automation engineer, whatnot. Throwing Exceptions. That is in your method you have something like this: public void insertMethodNameHere(String param) throws Exception {} This is bad. And I will tell you in short forms why. Hides exceptions This one should be obvious. When a method throws exception you can never be sure what kind of exceptions it handles. It will hide what problems it can encounter. It will hide possible threats and will generally mean nothing to you when it fails. ...