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  Tricks with Direct Memory Access in Java

Java was initially designed as a safe managed environment. Nevertheless, Java HotSpot VM contains a “backdoor” that provides a number of low-level operations to manipulate memory and threads directly. This backdoor – sun.misc.Unsafe â€“ is widely used by JDK itself in packages like java.nio or java.util.concurrent. It is hard to imagine a Java developer that uses this backdoor in any regular development because this API is extremely dangerous...

   Java,Directly memory access,Tricks,JVM     2012-02-13 05:31:19

  Introducing the for-if anti-pattern

Over the years, I've seen a bunch of coding anti-patterns. I figured maybe I'll share a few. Today, I'll introduce what I'm calling the for-if anti-pattern, also known as "We'll sell you the whole seat, but you'll only need the edge." This is a special case of the for-case anti-pattern, where all but one of the cases is null. for (int i = 0; i < 100; i++) { if (i == 42) { do_something(i); } } This can naturally be simplified to do_something(42); The for-if anti-pattern arises in ma...

   Programming,Anti-pattern,for-if,efficiency     2012-02-02 10:18:15

  Writing unit tests for legacy code – an open letter to developers I work with

This is an email I sent today to developers who work with me, it is exactly as I wrote it except for project and developer names which I’ve redacted. Dear Developers, S asked me a difficult question today, and I think the answer (which took me a few minutes to arrive at) is worth sharing with all developers, mainly because many of you will surely face the exact same problem especially in [maintenance and enhancement] projects. By now I think it is crystal clear that one of our non-ne...

   Unit testing,Open letter     2012-02-09 05:39:56

  6 cool 3D effect websites

As an unique website design style, 3D effect design will bring the visitors of a website visual impact. Today we share with you 6 cool 3D effect website designs.1. Angry bird workspaceAbsolute funny website design, you can see a random bird move as you mouse moves.2. The story of SendA cool 3D design from Google, you can see a moving Gmail icon transmit along a wire.3. 2BrandA sliding effect 3D homepage, you can see floating cloud and bubbles.4. The Amazing Spider-ManSpider man game website, v...

   3D,effect, web design     2012-06-27 04:09:31

  A guide on installing and setting up GitLab server on Ubuntu

GitHub, GitLab and BitBucket are the three most famous code hosting platform in the world. They have different features which allow teams or individuals to share code with others remotely. In case you want to build your own code hosting server so that you can host and share the code by yourself, you can install and set up your own server. In this post, we will walk you through a guide on installing and setting up GitLab server on Linux environment. gitlab is a web based code hosting tool which i...

   UBUNTU,TUTORIAL,GITLAB     2020-04-25 07:05:33

  Learning Go

This year I'm going to try a new programming language - Go. I had this notion that compiled, type based languages are overly complex and reduces developer efficiency. However, after doing some reading about Go, it appeared to take a different path from the rest and felt like something worth trying. Acquainting a programming language is a journey. First few steps you take with it will define your perception about it. These first few steps went well for me with Go and it felt lik...

   Go,Google,Learning,Resource     2012-01-05 08:09:55

  When Should Open Source Be Written Into Law?

As a systems administrator, I tend to think about source code and computing platform in large numbers. Computers however are getting smaller and more powerful, and the reality of computers that we put in or on our body as a normal daily routine is coming closer, and for many is already here. When our safety, our liberty, and our sense of humanity are tied to programmable devices, should we not only hope, but expect that we should have the right to examine how these devices function? Last ...

   Software,Open source,Time,Law     2012-01-28 07:23:09

  Some famous article aggregators

Blogs are still very important places for people sharing their thoughts about something although some social media platforms have replaced some of these capabilities. As a blog writer, how can you let others know what you are thinking about? Besides your friends and social media platforms, there are some article aggregators around us which can help us promote our articles. Other than some aggregators like Google News, readers can submit articles to these sites themselves What are some famous art...

   News aggregator,Reddit,Digg,Hacker News     2013-08-12 03:34:37

  5 reasons on why local businesses need a website

Having a website for a local business is not a matter of doubt – this is what the market demands. Customers turn to the web practically all the time, so you can be sure that when they need a specific product or service, the internet will serve as their first choice. Moreover, having a website will allow every business to expand their operation and deliver their product to a wider market, effectively competing against other providers. Here are 5 key reasons on why any business should be set...

   small business, company website     2015-03-30 06:35:54

  All Programmers Are Self-Taught

When I was a teenager I played high caliber baseball. I’m competitive to a fault and when I decide I want to be good at something, results usually follow. Now I’m a third year undergrad studying computer science. There’s something critically different between programming and sports though: A pitching coach teaches you how to pitch, but a CS professor doesn’t teach you how to code. I was surprised that neither my TAs nor professors critiqued my code during my firs...

   Programming,Style,Habit,Self learning     2011-12-21 10:25:50