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Java Desktop application: SWT vs. Swing [closed]
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@JanTobola It's plain wrong. Native components use memory allocated on the native heap, not only on the Java heap. I've worked on large GUIs using Netbeans Platform, Eclipse RCP, SWT and Swing.There were some serious concerns of memory footprint in Swing in very early versions of Ja...
How to convert image to byte array
...eeling it might have had something to do with a 4K byte boundary in memory allocation. But that could easily be wrong. I switched to using a MemoryStream with a BinaryFormatter and I was able to become very consistent as tested with over 250 different test images of varying formats and sizes, loop...
Java String - See if a string contains only numbers and not letters
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If you look at the code of toCharArray, it is allocating a char array and copying the chars (i think that could be expensive). What about if you just iterate the string using an index and charAt, would it be faster? Would be interesting also if you could add the soluti...
Detect if a NumPy array contains at least one non-numeric value?
...really the fastest way to do this? i) Doesn't numpy.isnan(a).any() involve allocating a large temporary array (it is it a view). ii) If the first element is NAN, does this solution involve iterating over the full array? If I set the first element to NAN, this still takes about 5microseconds, which s...
Parsing HTML into NSAttributedText - how to set font?
... self.font.pointSize]];
self.attributedText = [[NSAttributedString alloc] initWithData:[string dataUsingEncoding:NSUnicodeStringEncoding]
options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
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Is it a bad practice to catch Throwable?
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How do you know what was allocated and what wasn't prior to the OOME? All bets are off once you get that, even inside a J2EE container like Tomcat or JBoss.
– bmauter
May 31 '13 at 2:05
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Why does a RegExp with global flag give wrong results?
...he re.lastIndex. This is strange because I would expect a new RegExp to be allocated each time the function is called and not shared across multiple invocations of my function.
When I changed it to:
var re = new RegExp('^([^-]+)-([^-]+)-([^-]+)$', 'g');
Then I don't get the lastIndex holdover ef...
OS detecting makefile
... this breaks on osx too. /bin/sh: -c: line 0: syntax error near unexpected token ,Windows_NT' /bin/sh: -c: line 0: ifeq (,Windows_NT)' make: *** [os] Error 2
– k107
Dec 2 '16 at 7:58
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PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
...t to send someone from .org to .com, particularly if they might have login tokens on .org that they'd lose if sent to the other domain.
Either way, you just need to be sure that your webapp will only ever respond for known-good domains. This can be done either (a) with an application-side check lik...
django - why is the request.POST object immutable?
... allow substantial optimizations. An object is immutable means that we can allocate space for it at creation time, and the space requirements are not changing. It also has things like copy efficiency and comparison efficiency because of it.
Edit: this is not the case for QueryDict as Gareth Rees p...