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How to track down log4net problems
...n, it's very easy to build and debug the source code. If you don't want to mix this up with your development project, add a simple console application which just logs a message, copy your project's log4net.config to this application, and debug the class in question.
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How to convert a data frame column to numeric type?
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Warning != Error. You don't get an error converting mixed numeric/character to numeric, you get a warning and some NA values.
– Gregor Thomas
Apr 18 '18 at 13:01
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Get a list of resources from classpath directory
...r example:
private List<String> getResourceFiles(String path) throws IOException {
List<String> filenames = new ArrayList<>();
try (
InputStream in = getResourceAsStream(path);
BufferedReader br = new BufferedReader(new InputStreamReader(in)))
...
How to overload the operator++ in two different ways for postfix a++ and prefix ++a?
... correct all the way through apart from a sentence in the middle where you mix. Its prefix that is better.
– Martin York
Oct 2 '10 at 19:10
6
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How do I check if a string contains a specific word?
...ng you can use the PHP function strpos().
int strpos ( string $haystack , mixed $needle [, int $offset = 0 ] )
<?php
$haystack = 'how are you';
$needle = 'are';
if (strpos($haystack,$needle) !== false) {
echo "$haystack contains $needle";
}
?>
CAUTION:
If the needle you are searchi...
What's the difference between ASCII and Unicode?
...he endian-ness of the machine that created the text stream. So add to the mix UTF-16BE, UTF-16LE, UTF-32BE and UTF-32LE.
Having these different encoding choices brings back the code page disaster to some degree, along with heated debates among programmers which UTF choice is "best". Their associa...
Create whole path automatically when writing to a new file
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Will it override the previous folder, if I am reissuing the same code with different sibling file?
– surajs1n
Nov 17 '19 at 14:32
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What's the difference between libev and libevent?
...us I/O, which can be used independently or together with libev, so you can mix and match).
So in short, libev tries to do one thing only (POSIX event library), and this in the most efficient way possible. Libevent tries to give you the full solution (event lib, non-blocking I/O library, http server...
How to use single storyboard uiviewcontroller for multiple subclass
...ss name requested is indeed a subclass of TestViewController, to avoid any mix-ups. The reference above to BlueTestViewController is there to test this functionality.
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How does Java Garbage Collection work with Circular References?
...örg W Mittag:At least by default I believe Jikes RVM currently uses the Immix collector, which is a region-based tracing collector (though it does also use reference counting). I'm not sure whether you're referring to that reference counting, or another collector that uses reference counting withou...