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How to split a string in Java
... *, the plus sign +, the opening parenthesis (, the closing parenthesis ), and the opening square bracket [, the opening curly brace {, These special characters are often called "metacharacters".
So, if you want to split on e.g. period/dot . which means "any character" in regex, use either backsla...
How do I declare and assign a variable on a single line in SQL
...at the ' is escaped by doubling it to ''.
Since the string delimiter is ' and not ", there is no need to escape ":
DECLARE @var nvarchar(max) = '"My Name is Luca" is a great song';
The second example in the MSDN page on DECLARE shows the correct syntax.
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How to reload/refresh an element(image) in jQuery
... Adding a query string variable completely passed my mind. This solved it and the image now reloads on request.
– Alexis Abril
Jan 21 '10 at 16:17
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How to create an array from a CSV file using PHP and the fgetcsv function
...here in case fopen() fails, but this works to read a CSV file line by line and parse the line into an array.
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How to round a number to significant figures in Python
... You should use log10(abs(x)), otherwise negative numbers will fail (And treat x == 0 separately of course)
– Tobias Kienzler
Jul 30 '13 at 8:06
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Can I get a patch-compatible output from git-diff?
...iff arguments>]
Usually though, it is easier to use straight git diff and then use the output to feed to git apply.
Most of the time I try to avoid using textual patches. Usually one or more of temporary commits combined with rebase, git stash and bundles are easier to manage.
For your use ca...
How to specify the default error page in web.xml?
...authentication, having a disabled directory listing, using custom servlets and code which can possibly throw unhandled exceptions or does not have all methods implemented, then you'd like to set it for HTTP errors 401, 403, 500 and 503 respectively.
<error-page>
<!-- Missing login --&g...
Select every Nth element in CSS
...ddition to constant numbers. You can perform addition (+), subtraction (-) and coefficient multiplication (an where a is an integer, including positive numbers, negative numbers and zero).
Here's how you would rewrite the above selector list:
div:nth-child(4n)
For an explanation on how these ari...
Are static fields open for garbage collection?
...ollected for garbage.
Check out the JLS Section 12.7 Unloading of Classes and Interfaces
A class or interface may be unloaded
if and only if its defining class
loader may be reclaimed by the garbage
collector [...] Classes and interfaces
loaded by the bootstrap loader may not
be unloa...
Set NOW() as Default Value for datetime datatype?
I have two columns in table users namely registerDate and lastVisitDate which consist of datetime data type. I would like to do the following.
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