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Why is it not possible to extend annotations in Java?
... enum AnnotationCategory {
GENERAL,
SEMANTICS,
VALIDATION,
ETC
}
@Category(category={AnnotationCategory.GENERAL, AnnotationCategory.SEMANTICS})
public @interface FooBarAnnotation {
}
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How do I choose between Tesseract and OpenCV? [closed]
... image inputs (a single word, line, paragraph, page, limited dictionaries, etc.).
OpenCV, on the other hand, is a computer vision library that includes features that let you perform some feature extraction and data classification. You can create a simple letter segmenter and classifier that performs...
Prevent text selection after double click
...nt.detail === 2) to really prevent ONLY double-click (and not triple-click etc.)
– Robin Stewart
Feb 26 at 4:17
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Why does Boolean.ToString output “True” and not “true”
...rything public in .NET is CamelCase - System.Boolean, True, System.String, etc - it's C#'s C heritage that lead to the aliasing of String to string, Boolean to bool, True to true, etc. (Although my personal preference is still C#).
– stusmith
Jan 29 '09 at 13:1...
Detecting programming language from a snippet
...r with certain frequencies in a text it's likely that the language is Java etc. But I don't think you will get anything that is completely fool proof, as you could name for example a variable in C the same name as a keyword in Java, and the frequency analysis will be fooled.
If you take it up a not...
Converting a string to a date in JavaScript
...parts[1]); JavaScript counts months from 0:
// January - 0, February - 1, etc.
var mydate = new Date(parts[0], parts[1] - 1, parts[2]);
console.log(mydate.toDateString());
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Why is rbindlist “better” than rbind?
...bind.data.frame will account for the fact that columns may be in different orders, and match up by name), rbindlist doesn't do this kind of checking, and will join by position
eg
do.call(rbind, list(data.frame(a = 1:2, b = 2:3), data.frame(b = 1:2, a = 2:3)))
## a b
## 1 1 2
## 2 2 3
## 3 2 ...
Safe integer parsing in Ruby
...f the string matches a pattern first. Like the /\d+/ regular expressions, etc.
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Using Mockito's generic “any()” method
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This class is now deprecated in order to avoid a name clash with Hamcrest. Use org.mockito.ArgumentMatchers
– leo9r
Mar 22 '19 at 23:26
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Getting the count of unique values in a column in bash
...lues in a column for all the files in a folder and sort them in decreasing order of count (highest count first). How would I accomplish this in a Linux command line environment?
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