What if I need a picture?
-> It’s too weak! I need the basic picture manipulation functions. Like position and size.

Category?
-> Damn it! Flock blogging does not support category! Unbelievable!
-> Oh, sorry, it does support category but not so obviously.

What if I need a picture?
-> It’s too weak! I need the basic picture manipulation functions. Like position and size.

Category?
-> Damn it! Flock blogging does not support category! Unbelievable!

The Carbon Economy

(View high quality video on YouTube)

It’s time for real

Hellmann’s – It’s Time for Real from CRUSH on Vimeo.

The State of The Internet

JESS3 / The State of The Internet from Jesse Thomas on Vimeo.

It’s really great!

If you are as lazy as me, just remember the following implementation, which is thread safe and can be used on all the java version. The key point in this implementation is using Java atomic class load mechanism to guarantee the thread safe and using static method to implement lazy initialization.

If you also have some curious on the other implementations, please keep reading.

1. The simplest implementation(Immutable class, thread safe, but no lazy initialization)
   
2. The double check locking implementation(Thread safe, lazy initialization, but requires Java 5+)
   
3. The enum implementation(Thread safe, Serializable, also requires Java 5+)
   

After reading all of these, I don’t think you need any other implementations, but to understand why and how these implementations work, you need read something more[Typically those links I provided at the beginning]. There are things called Google and Bing on the earth, I guess you can find the answer very soon.

Write a function to reverse a string.

It’s a simple question, Hmm? But not so simple.

In Java, StringBuilder class provided a convenient method to reverse the characters it holds, and in C#, we have a static method Array.reverse() to help us. Also, we can write it by ourselves(it’s not a big deal, right?).

OK, let’s take a look at how we can do this.

It’s simple. Hmm? We turn the string into char array, and swap the array element. It’s done.

If we use the API provided by .NET Framework, it will be much more simple.

Here is the output generated by the above program.

The XOR is based on the fasted int value swap. This algorithm won’t need the temporary variable. And if we treat all the string data as bit data, this method works fine for string. Even when dealing with Unicode characters. But it cost much more time than the API do. In most cases, it cost 10 times longer than Array.reverse() do.

Before we draw the conclusion, let’s take a look at Java can do.

Java doesn’t have a similar Array.reverse() function, but it does provide a StringBuilder.reverse() method. Let’s take a look at what Java can do.

Here is the output generated on my desktop.

So far, we can have several conclusions:

1. Using XOR to swap string character is not a good idea.
2. Array.Reverse() provided by .NET framework performs much faster than any other methods, but WHY?

The reason Array.Reverse() has a good performance is here:

BTW .. I just had a look at the implementation of Array.Reverse, and its done natively for chars … it should be much faster than the StringBuilder option. – Sam Saffron Oct 23 ‘08 at 0:46

Ouch, remember, if you want to use .NET to perform an array reverse, please use Array.Reverse().

Look at this.

Any way, this a great tool, and it is a must-have plug-in for Visual C++. [Get a copy and take a trial] of Visual Assist X and take a look these wonderful features.

• VA Outline allows you to navigate, organize and refactor code easily
• Acronyms, Suggestions, VA Snippets help you create code faster
• Enhanced Error Detection and Correction catches errors before you compile
• Refactor easily in ALL languages
• Enhanced IntelliSense and Hovering Class Browser help decipher complex code
• Navigate easily to any file, method, or symbol
• Find References faster in ALL languages
• Enhanced Syntax Coloring helps you read code faster
• And much more…

Google Code is great! Especially, it integrates a wiki-style document authoring tool. That is fantastic! I really like it. Before I started to use google code wiki page, I had tried to learn these syntaxes on Wikipedia.com, but I failed, I thought those mark up language was too difficult to remember. I was wrong. It’s not those mark-up’s fault, it’s wiki who did not provided a clear tutorial to new users. On the other hand, google dose provided an easy way to understand these mark-ups. That’s a short sample code within the edition box. That really helps!

I will try much more about wiki style from now on.

Here, please view Bill Venners article written in 2006 when he interviewed Elliotte Rusty Harold.

Here, to see what Elliotte Rusty Harold said about REST.

And here to see what is REST on wikipedia.

One thing to remember, there are 4 HTTP verbs, GET, POST, PUT, DELETE, not just 2. Someone killed the other 2 we don’t familiar with.

[Updates: 2010/02/03] Implement the "Recent Posts", and "Random Posts" feature.

[Updates: 2010/02/04] Updated “About” and “Contact” page.