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How to properly compare two Integers in Java?
..., or a character literal between '\u0000' and '\u007f'
inclusive (§3.10.4), then let a and b be the results of any two boxing
conversions of p. It is always the case that a == b.
Personally I'd use:
if (x.intValue() == y.intValue())
or
if (x.equals(y))
As you say, for any comparison bet...
Core dumped, but core file is not in the current directory?
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245
Read /usr/src/linux/Documentation/sysctl/kernel.txt.
[/proc/sys/kernel/]core_pattern is used t...
how to draw smooth curve through N points using javascript HTML5 canvas?
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answered Aug 14 '11 at 17:53
HomanHoman
22.1k2020 gold badges6060 silver badges9191 bronze badges
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How to run Rake tasks from within Rake tasks?
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642
If you need the task to behave as a method, how about using an actual method?
task :build =>...
How to create circle with Bézier curves?
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141
As already said: there is no exact representation of the circle using Bezier curves.
To compl...
What does %w(array) mean?
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edited Aug 29 '17 at 19:14
answered Aug 13 '09 at 21:28
se...
What do all of Scala's symbolic operators mean?
... simply methods on a class. For instance, if you do
List(1, 2) ++ List(3, 4)
You'll find the method ++ right on the ScalaDoc for List. However, there's one convention that you must be aware when searching for methods. Methods ending in colon (:) bind to the right instead of the left. In other wor...
How to search and replace globally, starting from the cursor position and wrapping around the end of
...(<c-b>) and
then four characters to the right (<right> × 4),
thus putting it between the first two slash signs, ready for the user
to start typing the search pattern. Once the desired pattern and the
replacement are ready, the resulting command can be run by pressing
Enter.
(One mi...
data.frame rows to a list
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answered Jan 17 '13 at 0:45
flodelflodel
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Count number of rows within each group
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