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How do I convert an interval into a number of hours with postgres?
...
If you convert table field:
Define the field so it contains seconds:
CREATE TABLE IF NOT EXISTS test (
...
field INTERVAL SECOND(0)
);
Extract the value. Remember to cast to int other wise you can get an unple...
How to beautify JSON in Python?
...thon solution that colors json data supplied via the command line:
import sys
import json
from pygments import highlight, lexers, formatters
formatted_json = json.dumps(json.loads(sys.argv[1]), indent=4)
colorful_json = highlight(unicode(formatted_json, 'UTF-8'), lexers.JsonLexer(), formatters.Ter...
How to go about formatting 1200 to 1.2k in java
... This code is sensitive to locale, for example in sv_SE locale 1000 converts to 10x10³, which is not matched correctly by the regexp.
– Joakim Lundborg
Feb 5 '14 at 22:53
2...
Merging two arrays in .NET
...ds up: if you only want to iterate through the combined result, no need to convert it to an array. That final operation does an array copy. It won't have to do that if you iterate through an IEnumerable<int>. Of course, there could be good reasons to have it be an array.
–...
Generating random numbers in Objective-C
... = (((float)arc4random()/0x100000000)*(high_bound-low_bound)+low_bound);
Convert result to a rounder Integer value:
int intRndValue = (int)(rndValue + 0.5);
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Sound alarm when code finishes
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On Linux and Mac
import os
duration = 1 # seconds
freq = 440 # Hz
os.system('play -nq -t alsa synth {} sine {}'.format(duration, freq))
In order to use this example, you must install sox.
On Debian / Ubuntu / Linux Mint, run this in your terminal:
sudo apt install sox
On Mac, run this in...
ImportError: No module named PIL
...ommand is. The two should match well enough. Or, better: python -c 'import sys; print sys.path' will tell you where your python command looks for modules (print(sys.path), for Python 3).
– Eric O Lebigot
Oct 26 '17 at 8:34
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Convert InputStream to byte array in Java
How do I read an entire InputStream into a byte array?
34 Answers
34
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Why does dividing two int not yield the right value when assigned to double?
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I would prefer to explicitly convert both a and b to double simply for clarity, but it really doesn't matter.
– John Dibling
Sep 27 '11 at 15:31
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Best way to work with dates in Android SQLite [closed]
... date column.
Retrieving dates as strings from SQLite you can then format/convert them as required into local regionalised formats using the Calendar or the android.text.format.DateUtils.formatDateTime method.
Here's a regionalised formatter method I use;
public static String formatDateTime(Conte...