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Which is more efficient, a for-each loop, or an iterator?
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If you are just wandering over the collection to read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater.
If however, you mean by loop the old "c-style" loop:
for(int i=0; i&l...
Why does comparing strings using either '==' or 'is' sometimes produce a different result?
...l reasons: it is
inherently O(n) in the length of the
strings; it typically requires reads
from several regions of memory, which
take time; and the reads fills up the
processor cache, meaning there is less
cache available for other needs. With
interned strings, a simple object
identi...
PHP DOMDocument loadHTML not encoding UTF-8 correctly
...ese, Russian, Arabic, Hebrew, ...etc.)
I recommend reading this article: http://coding.smashingmagazine.com/2012/06/06/all-about-unicode-utf8-character-sets/. You will understand how UTF-8 works and why you have this problem. It will take you about 30 minutes, but it is time well spent.
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Best database field type for a URL
...tor max URL length among popular web browsers: 2,083 (Internet Explorer)
http://dev.mysql.com/doc/refman/5.0/en/char.html
Values in VARCHAR columns are variable-length strings. The length can be specified as a value from 0 to 255 before MySQL 5.0.3, and 0 to 65,535 in 5.0.3 and later versions. T...
Catch Ctrl-C in C
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Check here:
http://www.csl.mtu.edu/cs4411.ck/www/NOTES/signal/install.html
Note: Obviously, this is a simple example explaining just how to set up a CtrlC handler, but as always there are rules that need to be obeyed in order not to br...
Is it Linq or Lambda?
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How do I deserialize a JSON string into an NSDictionary? (For iOS 5+)
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How to convert currentTimeMillis to a date in Java?
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Calendar objects are generally considered quite large, so should be avoided when possible. A Date object is going to be better assuming it has the functionality you need. "Date date=new Date(millis);" provided in the other answer by user AVD is going ...
How to identify if the DLL is Debug or Release build (in .NET) [duplicate]
...s to check the compiled assemblies itself. There is this very useful tool called '.NET Assembly Information' found here by Rotem Bloom. After you install this, it associates itself with .dll files to open with itself. After installing you can just double-click on the Assembly to open and it will giv...
Argparse optional positional arguments?
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