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Getting the last element of a split string array
...fier that means the same as the quantifier {1,}, i.e. [, ]+ matches one or more of the characters in the set (comma and space). It's useful when you want all the words from the string, but when you only want the last word it doesn't make any functional difference, it only reduces the overhead as the...
What are .dex files in Android?
...cumentation on the Dalvik Executable Format (.dex files). You can find out more over at the official docs: Dex File Format
.dex files are similar to java class files, but they were run under the Dalkvik Virtual Machine (DVM) on older Android versions, and compiled at install time on the device to n...
UITableView Setting some cells as “unselectable”
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Logger slf4j advantages of formatting with {} instead of string concatenation
... varargs parameters since API version 1.7.
For those cases where you need more than 2 and you're stuck with pre-1.7 SLF4J, then just use either string concatenation or new Object[] { param1, param2, param3, ... }. There should be few enough of them that the performance is not as important.
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javascript: recursive anonymous function?
...e/many/all of the problems described in Kangax's blog post may be fixed in more modern browsers.)
When you give a name like that, the name is not visible outside the function (well, it's not supposed to be; that's one of the weirdnesses). It's like "letrec" in Lisp.
As for arguments.callee, that'...
Why would a static nested interface be used in Java?
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@Pacerier: no. More precisely, you can load the class and inspect its members, but cannot instantiate it or call methods on it without using setAccessible(true). In other words it is visible, but not accessible, via reflection. But if the n...
How do I check if the mouse is over an element in jQuery?
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@Arthur did right here, do you still need more info? stackoverflow.com/a/1670561/152640
– mothmonsterman
Feb 26 '13 at 14:51
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Is the buildSessionFactory() Configuration method deprecated in Hibernate
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MySQL, better to insert NULL or empty string?
...NULL you can distinguish between "put no data" and "put empty data".
Some more differences:
A LENGTH of NULL is NULL, a LENGTH of an empty string is 0.
NULLs are sorted before the empty strings.
COUNT(message) will count empty strings but not NULLs
You can search for an empty string using a bound...
Join/Where with LINQ and Lambda
...'re familiar with SQL syntax, using the LINQ query syntax is much clearer, more natural, and makes it easier to spot errors:
var id = 1;
var query =
from post in database.Posts
join meta in database.Post_Metas on post.ID equals meta.Post_ID
where post.ID == id
select new { Post = post, ...