Learn to use Dependency Injection
Recently I placed a comment on this interesting blog from Uncle Bob Martin (Robert C. Martin). It contains a brief description on how I teach people how to use the Spring Framework.
Now, by popular demand (one person requested it over Twitter), I’ll guide you through the method and examples I use in this blogpost. It explains why people should use frameworks like Spring and/or Google Guice, and how.
What if your favourite movie was remade as porno
What if your favourite movie was remade as a porn movie? How would it be called, what would the title be?
My collegues and I were discussing this, and we came up with a top 10. We’ve also started a twitter hashtag.
Top 10
- Shaving Ryan’s Privates (everybodies favourite)
- The Curious Taste of Benjamin’s Bottom
- Honey, I shagged the kids
- Missionary Impossible III
- Good Will Humping
- Free my Willy
- Legally Boned
- I Know Who you did last Summer
- Schindler’s Fist
- Cliff Banger
Honourable mentions
And some honourable mentions to the titles that just didn’t make the list:
- When Harry ate Sally
- Saturday Night Beaver
- Spankenstein
- Swollow Hal
- Sorest Rump
- Bangs of New York
- American Bangster
- Thighs Wide Shut
- Citizen Came
- The Green Milf
- The Porn Identity
- Crouching Woman, Hidden Camera
Does my car hate me?
Why does my car do this to me? It bugs me everyday. When I drive with the snow outside I have to use my windscreen washer quite a lot. When I pull the little lever behind my steering wheel it spurts a jet of antifreeze/washer fluid onto my screen and it starts to wipe for about 10 times. Then it stops… my window is clean again!
But after about 15 seconds it does one final sweep… and this last sweep always leaves ugly marks!
Why do cars do this!!!? First it cleans my window perfectly, and then spoils it!
Update:
A collegue adviced me this: If the car has just finished wiping, quickly switch on the manual and stop it. This will still cause one extra wipe, but it comes right after the others. This produces a slightly better result.
I tried this two times on my car (a Fiat Bravo) and it worked one time, the other time it still did the final whipe after around 10 seconds.
MD5 quine, fixed point
MD5 quines
Sometimes I let my mind wonder and I get crazy questions. Today was a good example, I encountered a MD5 hash and I started to wonder, would there be a hash which would (when hashed again) be the same?
Thus: MD5(x) = x
This would be a kind of MD5 quine, when fed into the algorithm you get the original value back. This is actually called an MD5 fixed point.
Splitting up Spring Web Flow & Facelets into JARs
In our current project we want to have multiple Spring Web Flow-flows in one WAR-file. But we also want the flows and pages to be inside seperate JAR files, making the application a bit more managable and modulair.
This sounds straightforward but it took quite a bit of code and time…