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Hour from DateTime? in 24 hours format
... This was the preferred solution for me because I just needed the int from the hour of the day. Much easier then converting to a string just to parse back into a DateTime again.
– Sev
Nov 17 '16 at 22:22
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Netty vs Apache MINA
...ng to reimplement the same functionality we already had on MINA, we did so from scratch. By following the excellent documentation and examples we ended up with more functionality in much, much less code.
The Netty Pipeline worked better for us. It is somehow simpler than MINAs, where everything is ...
Javascript for “Add to Home Screen” on iPhone?
...is with the builtin UI, and that Apples does not provide anyway to do this from scripts within a page. In fact, I am pretty sure there is no mechanism for doing this on the desktop version of Safari either.
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Ruby: Calling class method from instance
In Ruby, how do you call a class method from one of that class's instances? Say I have
9 Answers
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Can I catch multiple Java exceptions in the same catch clause?
... the same block if ExceptionB is inherited, either directly or indirectly, from ExceptionA. The compiler will complain:
Alternatives in a multi-catch statement cannot be related by subclassing
Alternative ExceptionB is a subclass of alternative ExceptionA
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Is AsyncTask really conceptually flawed or am I just missing something?
...destroyed which
triggered the task?
Manually disassociate the activity from the AsyncTask in onDestroy(). Manually re-associate the new activity to the AsyncTask in onCreate(). This requires either a static inner class or a standard Java class, plus perhaps 10 lines of code.
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Can a local variable's memory be accessed outside its scope?
...rized to be in the room. Nor is there a mysterious force that prevents you from entering a room with a stolen key.
The hotel management is not required to remove your book. You didn't make a contract with them that said that if you leave stuff behind, they'll shred it for you. If you illegally re-e...
How can I sharpen an image in OpenCV?
...ing:
You use a Gaussian smoothing filter and subtract the smoothed version from the original image (in a weighted way so the values of a constant area remain constant).
To get a sharpened version of frame into image: (both cv::Mat)
cv::GaussianBlur(frame, image, cv::Size(0, 0), 3);
cv::addWeighted(f...
How to read keyboard-input?
I would like to read data from the keyboard in python
5 Answers
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How does JavaScript .prototype work?
...slot as a property on an object, internal to the JavaScript engine, hidden from the code you write. The square brackets around [[Prototype]] are deliberate, and are an ECMAScript specification convention to denote internal slots.
The value pointed at by the [[Prototype]] of an object, is colloquia...