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Java Reflection Performance
...operations have slower performance than their non-reflective counterparts, and should be avoided in sections of code which are called frequently in performance-sensitive applications.
Here's a simple test I hacked up in 5 minutes on my machine, running Sun JRE 6u10:
public class Main {
publ...
In the shell, what does “ 2>&1 ” mean?
In a Unix shell, if I want to combine stderr and stdout into the stdout stream for further manipulation, I can append the following on the end of my command:
...
HSL to RGB color conversion
...(which he attributes to a now defunct mjijackson.com, but is archived here and the original author has a gist - thanks to user2441511).
The code is re-posted below:
HSL to RGB:
/**
* Converts an HSL color value to RGB. Conversion formula
* adapted from http://en.wikipedia.org/wiki/HSL_color_sp...
What is AF_INET, and why do I need it?
I'm getting started on socket programming, and I keep seeing this AF_INET .
5 Answers
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Make a Bash alias that takes a parameter?
...f #calls `myfunction`
By the way, Bash functions defined in your .bashrc and other files are available as commands within your shell. So for instance you can call the earlier function like this
$ myfunction original.conf my.conf
...
How to distinguish mouse “click” and “drag”
I use jQuery.click to handle the mouse click event on Raphael graph, meanwhile, I need to handle mouse drag event, mouse drag consists of mousedown , mouseup and mousemove in Raphael.
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Why use a ReentrantLock if one can use synchronized(this)?
I'm trying to understand what makes the lock in concurrency so important if one can use synchronized (this) . In the dummy code below, I can do either:
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More elegant way of declaring multiple variables at the same time
...called function. This is certainly a reliable way to create dictionaries, and people seem to be at least accepting of this idiom, but I suspect that some may consider it Unpythonic. </disclaimer>
Yet another approach, which is likely the most intuitive if you will be using this pattern fr...
How can I delete multiple lines in vi?
...
Sounds like you're entering the commands in command mode (aka. "Ex mode"). In that context :5d would remove line number 5, nothing else. For 5dd to work as intended -- that is, remove five consequent lines starting at the cursor -- enter it in normal mode and d...
Asp.net MVC ModelState.Clear
...w SomeModel { SomeString = "some value" };
return View(newModel);
}
And still the view renders with the original model. What's odd is, when I put a breakpoint in the view and examine the model, it has the changed value. But the response stream has the old values.
Eventually I discovered ...