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Java: notify() vs. notifyAll() all over again
...n.
That is not correct. o.notifyAll() wakes all of the threads that are blocked in o.wait() calls. The threads are only allowed to return from o.wait() one-by-one, but they each will get their turn.
Simply put, it depends on why your threads are waiting to be notified. Do you want to tell one...
CHECK constraint in MySQL is not working
... be implemented in MySQL.
See this bug report: https://bugs.mysql.com/bug.php?id=3464
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Simple way to encode a string according to a password?
...th bad input, because the ciphertext is signed.
The Galois / Counter mode block cipher produces ciphertext and a tag to serve the same purpose, so can be used to serve the same purposes. The downside is that unlike Fernet there is no easy-to-use one-size-fits-all recipe to reuse on other platforms....
What blocks Ruby, Python to get Javascript V8 speed? [closed]
Are there any Ruby / Python features that are blocking implementation of optimizations (e.g. inline caching ) V8 engine has?
...
When is a C++ destructor called?
... object goes out of scope (not regarding to when an object leaves a given {block}). So, in other words, when is a destructor called on an object in a linked list?
That's up to the implementation of the linked list. Typical collections destroy all their contained objects when they are destroyed.
S...
What's the use/meaning of the @ character in variable names in C#?
...e. I believe this may be because of the familiarity of this requirement in PHP software for variables. And a lot of Open Source web systems are now coded in C# (where in the past it would have been PHP)
– Wasted_Coder
Mar 5 '16 at 19:36
...
Is it possible to change only the alpha of a rgba background colour on hover?
....brown { --rgb: 118, 76, 41; }
.green { --rgb: 51, 91, 11; }
a { display: block; position: relative; }
div { position: absolute; bottom: 0; background-color: rgba(var(--rgb), 0.8); }
a:hover div { background-color: rgba(var(--rgb), 1); }
To understand how this works, see How do I apply opacity to...
Java or Python for Natural Language Processing [closed]
...ty Extraction/Recognition with free tools while feeding Lucene Index
(With PHP) NLP programming tools using PHP?
(With Ruby) https://stackoverflow.com/questions/3776361/ruby-nlp-libraries
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What's the difference between array_merge and array + array?
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Source: https://softonsofa.com/php-array_merge-vs-array_replace-vs-plus-aka-union/
Stop using array_merge($defaults, $options):
function foo(array $options)
{
$options += ['foo' => 'bar'];
// ...
}
Note: array_replace function exists since PH...
How do you make Git ignore files without using .gitignore?
...ocal changes to tracked files:
git update-index --assume-unchanged my-file.php
Unignore local changes to tracked files:
git update-index --no-assume-unchanged my-file.php
source: git help update-index
--[no-]assume-unchanged
...
This option can be also used as a coarse file-...