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What's the best way to check if a String represents an integer in Java?
...; i++) {
char c = str.charAt(i);
if (c < '0' || c > '9') {
return false;
}
}
return true;
}
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When is .then(success, fail) considered an antipattern for promises?
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answered Jul 9 '14 at 20:35
BergiBergi
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Can you configure log4net in code instead of using a config file?
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edited Mar 20 '17 at 10:29
community wiki
6 re...
Python: How would you save a simple settings/config file?
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194
Configuration files in python
There are several ways to do this depending on the file format r...
How to select rows from a DataFrame based on column values?
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edited Jan 18 '19 at 2:47
answered Jun 12 '13 at 17:44
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Position of least significant bit that is set
...here
static const int MultiplyDeBruijnBitPosition[32] =
{
0, 1, 28, 2, 29, 14, 24, 3, 30, 22, 20, 15, 25, 17, 4, 8,
31, 27, 13, 23, 21, 19, 16, 7, 26, 12, 18, 6, 11, 5, 10, 9
};
r = MultiplyDeBruijnBitPosition[((uint32_t)((v & -v) * 0x077CB531U)) >> 27];
Helpful references:
"Usin...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
... — C++ [basic.fundamental] 3.9.1/5
This does not require that wchar_t be large enough to represent any character from all locales simultaneously. That is, the encoding used for wchar_t may differ between locales. Which means that you cannot necessarily ...
Store boolean value in SQLite
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edited Mar 27 '13 at 2:39
mjama
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answered May 9...
ANTLR: Is there a simple example?
...ust a very basic one: it does not handle unary operators (the minus in: -1+9) or decimals like .99 (without a leading number), to name just two shortcomings. This is just an example you can work on yourself.
Here's the contents of the grammar file Exp.g:
grammar Exp;
/* This will be the entry poi...
How to decompile a whole Jar file? [closed]
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