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Java split() method strips empty strings at the end? [duplicate]
...Word + "'"); } } return l; } returns 'a' and ' '. Whereas, if String s = "a a"; then output is just 'a' followed by another 'a' Why is this happening in Java 8?
– sofs1
Feb 1 '19 at 23:06
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How do I pick 2 random items from a Python set? [duplicate]
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Use the random module: http://docs.python.org/library/random.html
import random
random.sample(set([1, 2, 3, 4, 5, 6]), 2)
This samples the two values without replacement (so the two values are different).
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How to make certain text not selectable with CSS [duplicate]
...Firefox */
-ms-user-select: none; /* IE10+/Edge */
user-select: none; /* Standard */
To target IE9 downwards the html attribute unselectable must be used instead:
<p unselectable="on">Test Text</p>
share
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Unable to install R package in Ubuntu 11.04 [closed]
I'm new to Linux and R.
2 Answers
2
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Correct use of transactions in SQL Server
I have 2 commands and need both of them executed correctly or none of them executed. So I think I need a transaction, but I don't know how to use it correctly.
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“while :” vs. “while true” [duplicate]
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from manual:
: [arguments]
No effect; the command does nothing beyond expanding arguments and performing any specified
redirections. A zero exit code is returned.
As this returns always zero therefore is is similar to be used as true
Check out this answ...
How to condense if/else into one line in Python? [duplicate]
...statement to one line in Python?
I oftentimes see all sorts of shortcuts and suspect it can apply here too.
4 Answers
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How do I find the length (or dimensions, size) of a numpy matrix in python? [duplicate]
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shape is a property of both numpy ndarray's and matrices.
A.shape
will return a tuple (m, n), where m is the number of rows, and n is the number of columns.
In fact, the numpy matrix object is built on top of the ndarray object, one of numpy's two fundamental objec...
ImportError: No module named dateutil.parser
I am receiving the following error when importing pandas in a Python program
10 Answers
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generate days from date range
...es, or temp tables. The subquery generates dates for the last 10,000 days, and could be extended to go as far back or forward as you wish.
select a.Date
from (
select curdate() - INTERVAL (a.a + (10 * b.a) + (100 * c.a) + (1000 * d.a) ) DAY as Date
from (select 0 as a union all select 1 un...