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Convert ArrayList to String[] array [duplicate]
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If you mean, it worn convert a List<Integer> to an int[] ... that is correct. It converts it to an Integer[].
– Stephen C
May 14 '15 at 9:17
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How to convert String to Long in Kotlin?
So, due to lack of methods like Long.valueOf(String s) I am stuck.
11 Answers
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Recommendation for compressing JPG files with ImageMagick
...ize of the jpeg.
Strip any comment or exif tag
in imagemagick should be
convert -strip -interlace Plane -gaussian-blur 0.05 -quality 85% source.jpg result.jpg
or in the newer version:
magick source.jpg -strip -interlace Plane -gaussian-blur 0.05 -quality 85% result.jpg
hope this be useful.
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How can I convert a dictionary into a list of tuples?
If I have a dictionary like:
11 Answers
11
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Calculate distance between 2 GPS coordinates
...s and seconds are out of 60 so S31 30' is -31.50 degrees.
Don't forget to convert degrees to radians. Many languages have this function. Or its a simple calculation: radians = degrees * PI / 180.
function degreesToRadians(degrees) {
return degrees * Math.PI / 180;
}
function distanceInKmBetwe...
Best practice multi language website
... $lang_file_php = 'cache/'.LANG.'_'.filemtime($lang_file).'.php';
// convert .ini file into .php file
if (!file_exists($lang_file_php)) {
file_put_contents($lang_file_php, '<?php $strings='.
var_export(parse_ini_file($lang_file), true).';', LOCK_EX);
}
// translate...
How to extract epoch from LocalDate and LocalDateTime?
...ous without this information. However, the objects have several methods to convert them into date/time objects with timezones by passing a ZoneId instance.
LocalDate
LocalDate date = ...;
ZoneId zoneId = ZoneId.systemDefault(); // or: ZoneId.of("Europe/Oslo");
long epoch = date.atStartOfDay(zoneId...
Converting user input string to regular expression
I am designing a regular expression tester in HTML and JavaScript. The user will enter a regex, a string, and choose the function they want to test with (e.g. search, match, replace, etc.) via radio button and the program will display the results when that function is run with the specified argument...
How to download all files (but not HTML) from a website using wget?
...es:
wget --accept pdf,jpg --mirror --page-requisites --adjust-extension --convert-links --backup-converted --no-parent http://site/path/
This will mirror the site, but the files without jpg or pdf extension will be automatically removed.
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Storing money in a decimal column - what precision and scale?
...mplemented a system that needs to handle values in multiple currencies and convert between them, and figured out a few things the hard way.
NEVER USE FLOATING POINT NUMBERS FOR MONEY
Floating point arithmetic introduces inaccuracies that may not be noticed until they've screwed something up. All v...