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How to establish a connection pool in JDBC?
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If you need a standalone connection pool, my preference goes to C3P0 over DBCP (that I've mentioned in this previous answer), I just had too much problems with DBCP under heavy load. Using C3P0 is dead simple. From the documentation:
ComboPooledDataSource cpds = new ComboPooledDa...
How to list the size of each file and directory and sort by descending size in Bash?
I found that there is no easy to get way the size of a directory in Bash?
11 Answers
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node.js shell command execution
I am still trying to grasp the finer points of how I can run a linux or windows shell command and capture output within node.js; ultimately, I want to do something like this...
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How to disable back swipe gesture in UINavigationController on iOS 7
In iOS 7 Apple added a new default navigation behavior. You can swipe from the left edge of the screen to go back on the navigation stack. But in my app, this behavior conflicts with my custom left menu. So, is it possible to disable this new gesture in UINavigationController?
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How do I update Ruby Gems from behind a Proxy (ISA-NTLM)
The firewall I'm behind is running Microsoft ISA server in NTLM-only mode. Hash anyone have success getting their Ruby gems to install/update via Ruby SSPI gem or other method?
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What's the shortest code to cause a stack overflow? [closed]
...Stack Overflow, what's the shortest code to cause a stack overflow? Any language welcome.
131 Answers
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Reusable library to get human readable version of file size?
There are various snippets on the web that would give you a function to return human readable size from bytes size:
22 Answ...
What is a callback?
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In computer programming, a callback is executable code that is passed as an argument to other code.
—Wikipedia: Callback (computer science)
C# has delegates for that purpose. They are heavily used with events, as an event can automatical...
Create a “with” block on several context managers? [duplicate]
Suppose you have three objects you acquire via context manager, for instance A lock, a db connection and an ip socket.
You can acquire them by:
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How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
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The user-contributed section in the manual page of rmdir contains a decent implementation:
function rrmdir($dir) {
if (is_dir($dir)) {
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
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