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Removing whitespace from strings in Java
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Just use StringUtils from apache-commons. Its a static method called StringUtils.deleteWhitespace.
– Crozeta
Jun 7 '17 at 13:48
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Formula to determine brightness of RGB color
...olor was used. Each color is represented by 2x2 pixels, colors are sorted from darkest to lightest (left to right, top to bottom).
1st picture - Luminance (relative)
0.2126 * R + 0.7152 * G + 0.0722 * B
2nd picture - http://www.w3.org/TR/AERT#color-contrast
0.299 * R + 0.587 * G + 0.114 * B
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How to get the cuda version?
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As Jared mentions in a comment, from the command line:
nvcc --version
(or /usr/local/cuda/bin/nvcc --version) gives the CUDA compiler version (which matches the toolkit version).
From application code, you can query the runtime API version with
cuda...
Extract a substring from a string in Ruby using a regular expression
How can I extract a substring from within a string in Ruby?
5 Answers
5
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Unable to understand useCapture parameter in addEventListener
...evel-3-Events-20031107/events.html#Events-phases
Below, content extracted from the link.
Phases
The event is dispatched following a path from the root of the tree to this target node. It can then be handled locally at the target node level or from any target's ancestors higher in the tree. The ev...
What is std::promise?
...td::future is an asynchronous return object ("an object that reads results from a shared state") and a std::promise is an asynchronous provider ("an object that provides a result to a shared state") i.e. a promise is the thing that you set a result on, so that you can get it from the associated futu...
Rename a dictionary key
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wim's answer in its initial revision from 2013, there have only been additions since. The orderedness only comes from OP's criterion.
– Andras Deak
Feb 10 '18 at 23:30
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What is the difference between List (of T) and Collection(of T)?
... public void new InsertItem(...) and then calling the base.InsertItem(...) from within ? It would still not break the contract. (the name is 'Insert' in List, but nonetheless). So what is the big deal in sticking to Collections<T> ?
– DeeStackOverflow
Mar...
How to return a 200 HTTP Status Code from ASP.NET MVC 3 controller
I am writing an application that is accepting POST data from a third party service.
5 Answers
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Remove 'a' from legend when using aesthetics and geom_text
How can I can remove the letter 'a' from the legend generated by this code? If I remove the geom_text , then the 'a' letter will not show in the legend. I want to keep geom_text , though.
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