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Best practice for instantiating a new Android Fragment
...ing that they would raise an error when compiling. This is definitely the best answer provided and shows that there is no benefit to sfm.
– MPavlak
Aug 11 '16 at 14:58
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What's the best way to parse command line arguments? [closed]
...d easy to follow -- for python 2.3 thru 2.6. For python 2.7+ it is not the best answer as argparse is now part of the standard library and optparse deprecrated.
– matt wilkie
Feb 28 '11 at 19:47
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Is it possible to use Swift's Enum in Obj-C?
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And, of course, remember to import your Swift bridging header as the last item in the Objective-C file's import list:
#import "MyAppViewController.h"
#import "MyApp-Swift.h"
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Looping over a list in Python
...ode checks for a length of 2 rather than of 3...
The code only prints one item per value of x - and x is iterating over the elements of values, which are the sublists. So it will only print each sublist once.
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What is a good use case for static import of methods?
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Effective Java, Second Edition, at the end of Item 19 notes that you can use static imports if you find yourself heavily using constants from a utility class. I think this principle would apply to static imports of both constants and methods.
import static com.example.U...
C# equivalent to Java's charAt()?
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you can use LINQ
string abc = "abc";
char getresult = abc.Where((item, index) => index == 2).Single();
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What does “%” (percent) do in PowerShell?
...mbols including %
% (percentage)
1. Shortcut to foreach.
Task: Print all items in a collection.
Solution.
... | % { Write-Host $_ }
2. Remainder of division, same as Mod in VB.
Example:
5 % 2
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How to use ConcurrentLinkedQueue?
...lled and the time poll is called, other threads will have added or removed items from the queue. The threadsafe way to perform this is like this:
synchronized(queue) {
if(!queue.isEmpty()) {
queue.poll(obj);
}
}
Again...atomic calls to the queue are automatically thread-safe. Non...
Show the progress of a Python multiprocessing pool imap_unordered call?
... if rs._chunksize isn't 1 then rs._number_left won't be the number of list items remaining.
– Allen
Aug 19 '14 at 21:14
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How does one write code that best utilizes the CPU cache to improve performance?
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The most effective data structure for a cache is an array. Caches work best, if your data structure is laid out sequentially as CPUs read entire cache lines (usually 32 bytes or more) at once from main memory.
Any algorithm which accesses memory in random order trashes the caches because it alw...