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How can I truncate a double to only two decimal places in Java?
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edited May 19 '17 at 17:20
FracturedRetina
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Transpose list of lists
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How about
map(list, zip(*l))
--> [[1, 4, 7], [2, 5, 8], [3, 6, 9]]
For python 3.x users can use
list(map(list, zip(*l)))
Explanation:
There are two things we need to know to understand what's going on:
The signature of zip: zip(*iterables) This means zip expects an arbitrary numb...
How to write inline if statement for print?
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edited Jan 12 '15 at 9:26
answered Aug 9 '12 at 9:47
J...
\d is less efficient than [0-9]
I made a comment yesterday on an answer where someone had used [0123456789] in a regular expression rather than [0-9] or \d . I said it was probably more efficient to use a range or digit specifier than a character set.
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Java GUI frameworks. What to choose? Swing, SWT, AWT, SwingX, JGoodies, JavaFX, Apache Pivot? [close
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9 Answers
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Global access to Rake DSL methods is deprecated
...u may see something like
rake aborted!
You have already activated Rake 0.9.1 ...
I still had a copy of Rake 0.9.1 in my directory so I deleted it.
You can "delete" Rake 0.9.1 by running the following command:
gem uninstall rake -v=0.9.1
If you have multiple versions of the gem installed, yo...
How do I do string replace in JavaScript to convert ‘9.61’ to ‘9:61’?
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539
Do it like this:
var value = $("#text").val(); // value = 9.61 use $("#text").text() if you are...
Regular expression for floating point numbers
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TL;DR
Use [.] instead of \. and [0-9] instead of \d to avoid escaping issues in some languages (like Java).
Thanks to the nameless one for originally recognizing this.
One relatively simple pattern for matching a floating point number is
[+-]?([0-9]*[.])?[...
Getting unique items from a list [duplicate]
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edited Sep 7 '09 at 9:20
Noldorin
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Searching for UUIDs in text with regex
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The regex for uuid is:
\b[0-9a-f]{8}\b-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-\b[0-9a-f]{12}\b
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