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Why does Java's hashCode() in String use 31 as a multiplier?
...ight save a few CPU cycles on old machines, but you have hash collisions already on short ascii strings like "@ and #! , or Ca and DB . This does not happen if you choose, for instance, 1327144003, or at least 524287 which also allows bitshift: 524287 * i == i << 19 - i.
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Why are you not able to declare a class as static in Java?
...uestion was, "why a class can't be declared as static ..?", they can, and [read my post here]. It's an explanation about the usage of static classes and why they have to be nested-classes.
– Colin Hebert
Aug 27 '10 at 14:28
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Mercurial .hgignore for Visual Studio 2010 projects
... @David: That's for Windows thumbnail cache files "thumbs.db" read more about it here: en.wikipedia.org/wiki/Windows_thumbnail_cache
– Shady M. Najib
Apr 13 '11 at 19:34
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Target elements with multiple classes, within one rule
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This was a very helpful answer that I almost didn't read. Cheers!
– psicopoo
Dec 7 '12 at 14:34
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Implementing Comments and Likes in database
...similar tables for all frameworks I know.
One day you'll need to optimize reads from such structure. You can easily create agragating tables over base ones and lose a bit on writes.
One big table with dictionary may become uncontrollable one day.
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Are there any naming convention guidelines for REST APIs? [closed]
...ate](To the *collection*)
sub.domain.tld/class_name.{media_type}
[GET or Read](of *one* thing)
sub.domain.tld/class_name/id_value.{media_type}
[PUT or Update](of *one* thing)
sub.domain.tld/class_name/id_value.{media_type}
[DELETE](of *one* thing)
sub.domain.tld/class_name/id_value.{media_type}
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Why should I prefer to use member initialization lists?
...rules pertaining to simple data structures (rather than complete classes). Read the FAQ for more: stackoverflow.com/questions/146452/what-are-pod-types-in-c
– monkey0506
Mar 28 '16 at 4:02
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Installing multiple instances of the same windows service on a server
...rvicename="My Service" MyService.exe
I'm not entirely sure where I first read about this but I haven't seen it since. YMMV.
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Installing Java on OS X 10.9 (Mavericks)
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@Shawn Apple disables already installed JDK 7. But you can get some FAQ and install from here: java.com/en/download/faq/java_mac.xml but i did not try it out.
– Guy
Oct 25 '13 at 4:48
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How do I make and use a Queue in Objective-C?
...wever, if you plan to reuse the queue, or if you want your code to be more readable and self-evident, a dedicated queue class is probably what you want.
Cocoa doesn't have one built in, but there are other options, and you don't have to write one from scratch either. For a true queue that only adds...