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Generate random numbers uniformly over an entire range
...te, and the sequence is deterministic). Knuth has an excellent (if hard-to-read) treatise on random number generators, and I recently found LFSR to be excellent and darn simple to implement, given its properties are OK for you.
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Running multiple AsyncTasks at the same time — not possible?
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AsyncTask uses a thread pool pattern for running the stuff from doInBackground(). The issue is initially (in early Android OS versions) the pool size was just 1, meaning no parallel computations for a bunch of AsyncTasks. But later they fixed t...
How to only find files in a given directory, and ignore subdirectories using bash
...nt to find out where symlinks point to, you can do for x in /dev/abc-*; do readlink -f $x; done
– Mark Longair
Oct 10 '11 at 16:28
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Performance differences between debug and release builds
...= x; Pretty common in statements like dest[ix+1] = src[ix+1]; written for readability without introducing a helper variable. No need to compromise readability.
Constant folding. x = 1 + 2; becomes x = 3; This simple example is caught early by the compiler, but happens at JIT time when other opti...
ByteArray字节数组扩展 · App Inventor 2 中文网
...021-04-02)
初始版本
1.1 (2021-05-21)
修复ReadWord、ReadDWord和ToHex的错误
1.2 (2021-12-13)
ToString方法调用了JAVA 8的函数
1.3 (2022-05-13)
添加WriteToFile、ReadFromFile和DeleteFile方法添加AddUTF8String...
Is there hard evidence of the ROI of unit testing?
...ugs are few? These %s mean nothing without context. To be fair I am yet to read the whole study. But as it stands your post is useful (good links) but does not answer the question regarding ROI, IMO.
– Instine
Jun 13 '14 at 10:56
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Open a URL in a new tab (and not a new window)
...ferent ways in which they handle a user's browser preferences.
Additional Reading
window.open documentation.
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Declaring and initializing variables within Java switches
...gns it a value, which is why you get an error as you would when you try to read any other not-definitely-assigned local variable.
I would strongly recommend you not to use local variables declared in other cases - it leads to highly confusing code, as you've seen. When I introduce local variables i...
JSON: why are forward slashes escaped?
...r ignored escapes (like \z) not allowed in JSON?
The key for this was reading
http://www.cs.tut.fi/~jkorpela/www/revsol.html, followed by
http://www.w3.org/TR/html4/appendix/notes.html#h-B.3.2. The feature of
the slash escape allows JSON to be embedded in HTML (as SGML) and XML.
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Converting between datetime, Timestamp and datetime64
...nswer, I am thinking about accepting to move it to the top-level I have to read the others more deeply once by a computer.
– Andy Hayden
Oct 25 '17 at 0:42
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