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Why do Java webapps use .do extension? Where did it come from?
...escribed
below.
Prefix matching means that you want
all URLs that start (after the context
path part) with a particular value to
be passed to this servlet. Such an
entry might look like this:
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-patt...
What is reflection and why is it useful?
...running the unit test.
There are some good reflection examples to get you started at http://docs.oracle.com/javase/tutorial/reflect/index.html
And finally, yes, the concepts are pretty much similar in other statically typed languages which support reflection (like C#). In dynamically typed languag...
How to get the source directory of a Bash script from within the script itself?
...n full path, no matter how it is called.
Just make sure you locate this at start of the script.
This comment and code Copyleft, selectable license under the GPL2.0 or later or CC-SA 3.0 (CreativeCommons Share Alike) or later. (c) 2008. All rights reserved. No warranty of any kind. You have been wa...
What do these words mean in Git: Repository, fork, branch, clone, track?
...lots of great git books online. Have a look at ProGit and Git Magic to get started, as well as the official tutorials and community book.
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What is a Java ClassLoader?
...is loaded by some instance of java.lang.ClassLoader.
Whenever a new JVM is started by you usual Java program launching java <classname> command, the first step is to load all the key classes in memory required for proper working like java.lang.Object and other runtime classes (rt.jar).
Now, t...
How much size “Null” value takes in SQL Server
...crepancies that you have observed in information from other sources:
The start of the first article is a bit misleading. The article is not talking about the cost of storing a NULL value, but the cost of having the ability to store a NULL (i.e the cost of making a column nullable). It's true that ...
What's the difference of “./configure” option “--build”, “--host” and “--target”?
... could putty on to your embedded device and run "gdbserver :1234 a.out" to start debugging and listen on port 1234.
You would then build your debugging client (which connects to and controls the gdbserver) with
./configure --build=powerpc --host=i686 --target=mips
which you would copy to your ...
How do I prevent node.js from crashing? try-catch doesn't work
... crash and monitoring Node apps as well as load balancing. PM2 immediately starts the Node app whenever it crashes, stops for any reason or even when server restarts. So, if someday even after managing our code, app crashes, PM2 can restart it immediately. For more info, Installing and Running PM2
...
Python constructors and __init__
...ible.
As to your general question about constructors, Wikipedia is a good starting point. For Python-specific stuff, I highly recommend the Python docs.
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Using TortoiseSVN how do I merge changes from the trunk to a branch and vice versa?
...ing copy choose "merge range of revisions" and enter the trunk URL and the start and end revisions to merge.
The same in the opposite way to merge a branch in the trunk.
About the --reintegrate flag, check the manual here: http://tortoisesvn.net/docs/release/TortoiseSVN_en/tsvn-dug-merge.html#tsvn...