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How would you implement an LRU cache in Java?
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answered Dec 23 '09 at 15:43
Hank GayHank Gay
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How do I shuffle an array in Swift?
...s how to shuffle with a fast and uniform algorithm (Fisher-Yates) in Swift 4.2+ and how to add the same feature in the various previous versions of Swift. The naming and behavior for each Swift version matches the mutating and nonmutating sorting methods for that version.
Swift 4.2+
shuffle and sh...
Any way to properly pretty-print ordered dictionaries?
..., but it looks nice and keeps the order.
import json
pprint(data, indent=4)
# ^ugly
print(json.dumps(data, indent=4))
# ^nice
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Replace all 0 values to NA
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edited Aug 19 '18 at 20:43
answered Jun 14 '12 at 16:09
J...
Best practice: ordering of public/protected/private within the class definition?
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In Clean Code, Robert C. Martin advises coders to always put member variables at the top of the...
How to wait for all threads to finish, using ExecutorService?
I need to execute some amount of tasks 4 at a time, something like this:
26 Answers
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Can't compare naive and aware datetime.now()
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147
By default, the datetime object is naive in Python, so you need to make both of them either nai...
Structure padding and packing
...l" address boundaries - say, int members would have offsets, which are mod(4) == 0 on 32-bit platform. Padding is on by default. It inserts the following "gaps" into your first structure:
struct mystruct_A {
char a;
char gap_0[3]; /* inserted by compiler: for alignment of b */
int b;
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Rails 4 Authenticity Token
I was working on a new Rails 4 app (on Ruby 2.0.0-p0) when I ran into some authenticity token problems.
13 Answers
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type object 'datetime.datetime' has no attribute 'datetime'
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