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Best way to make Java's modulus behave like it should with negative numbers?
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144
It behaves as it should a % b = a - a / b * b; i.e. it's the remainder.
You can do (a % b + b...
Redirect STDERR / STDOUT of a process AFTER it's been started, using command line?
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126
Short of closing and reopening your tty (i.e. logging off and back on, which may also terminat...
How to remove the querystring and get only the url?
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16 Answers
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Regex how to match an optional character
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Use
[A-Z]?
to make the letter optional. {1} is redundant. (Of course you could also write [A-Z]{0,1} which would mean the same, but that's what the ? is there for.)
You could improve your regex to
^([0-9]{5})+\s+([A-Z]?)\s+([A-Z])([0-9]{3})([0-9]{3})([A-Z]{3})([A-...
What is the difference between NULL, '\0' and 0?
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11 Answers
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Why does Decimal.Divide(int, int) work, but not (int / int)?
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219
int is an integer type; dividing two ints performs an integer division, i.e. the fractional par...
How do I verify that an Android apk is signed with a release certificate?
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edited Jan 27 '17 at 20:05
Eugene
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answ...
How to determine if a point is in a 2D triangle? [closed]
...nce issues.
And here's some code to get you started:
float sign (fPoint p1, fPoint p2, fPoint p3)
{
return (p1.x - p3.x) * (p2.y - p3.y) - (p2.x - p3.x) * (p1.y - p3.y);
}
bool PointInTriangle (fPoint pt, fPoint v1, fPoint v2, fPoint v3)
{
float d1, d2, d3;
bool has_neg, has_pos;
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How do I generate random numbers in Dart?
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13 Answers
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The modulo operation on negative numbers in Python
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134
Unlike C or C++, Python's modulo operator (%) always return a number having the same sign as t...