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Why java.io.File doesn't have a close() method?
...le doesn't. Why is that? Is the file closed automatically on finalization or something?
5 Answers
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How do I install Python OpenCV through Conda?
I'm trying to install OpenCV for Python through Anaconda , but I can't seem to figure this out.
41 Answers
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C/C++ macro string concatenation
...y're both strings you can just do:
#define STR3 STR1 STR2
The preprocessor automatically concatenates adjacent strings.
EDIT:
As noted below, it's not the preprocessor but the compiler that does the concatenation.
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What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?
...x.buildnumber
Since this changes with every new code push, the client's forced to grab a new version, just because of the querystring. Look at this page (at the time of this answer) for example:
<link ... href="http://sstatic.net/stackoverflow/all.css?v=c298c7f8233d">
I think instead of ...
Find row where values for column is maximal in a pandas DataFrame
How can I find the row for which the value of a specific column is maximal ?
8 Answers
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What does an exclamation mark mean in the Swift language?
... it mean to "unwrap the instance"? Why is it necessary?
As far as I can work out (this is very new to me, too)...
The term "wrapped" implies we should think of an Optional variable as a present, wrapped in shiny paper, which might (sadly!) be empty.
When "wrapped", the value of an Optional varia...
Suppress deprecated import warning in Java
In Java, if you import a deprecated class:
6 Answers
6
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Immutable array in Java
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Not with primitive arrays. You'll need to use a List or some other data structure:
List<Integer> items = Collections.unmodifiableList(Arrays.asList(0,1,2,3));
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Is there a 'foreach' function in Python 3?
...et the situation I can do it in javascript, I always think if there's an foreach function it would be convenience. By foreach I mean the function which is described below:
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What is the difference between __dirname and ./ in node.js?
...rencing files that are located somewhere in relation to your current directory, is there any reason to use the __dirname variable instead of just a regular ./ ? I've been using ./ thus far in my code and just discovered the existence of __dirname , and essentially want to know whether it would b...