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How to change the decimal separator of DecimalFormat from comma to dot/point?
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edited Sep 19 '17 at 18:46
Francisco M
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answered Feb 19 '11 ...
How can I use a local image as the base image with a dockerfile?
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answered Dec 10 '13 at 17:50
jpetazzojpetazzo
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Loading custom configuration files
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edited Jan 7 '19 at 6:44
answered Feb 3 '09 at 10:27
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Subscripts in plots in R
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edited Jun 3 '17 at 11:34
Tom Kelly
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answered Apr 14 '...
How do I find duplicates across multiple columns?
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How to get the list of all printers in computer
... Arvo Bowen
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answered Mar 1 '10 at 8:01
Jojo SardezJojo Sardez
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Node.js: Difference between req.query[] and req.params
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edited Mar 24 '17 at 16:33
answered Jan 19 '13 at 19:37
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The modulo operation on negative numbers in Python
...the week day N days before? In Python we can compute with
return (2 - N) % 7
but in C, if N ≥ 3, we get a negative number which is an invalid number, and we need to manually fix it up by adding 7:
int result = (2 - N) % 7;
return result < 0 ? result + 7 : result;
(See http://en.wikipedia.org/...
Ruby regular expression using variable name
...just give gsub a string instead of a regular expression. In MRI >= 1.8.7, gsub will treat a string replacement argument as a plain string, not a regular expression:
var = "*This*"
str = "*This* is a string"
p str.gsub(var, 'foo' ) # => "foo is a string"
(It used to be that a string replace...
cd into directory without having permission
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