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Why are interface variables static and final by default?
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This explanation for the static modifier is completely spurious. A class's public instance variables are part of its interface and there's no reason why they shouldn't be abstracted in a Java interface, just like instance methods. It doesn't matter that a Java interfac...
How to annotate MYSQL autoincrement field with JPA annotations
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Switch on Enum in Java [duplicate]
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@GlenPeterson, that assumes you're compiling the enum code yourself, which is obviously not always the case.
– aioobe
Aug 4 '16 at 4:28
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Error while installing json gem 'mkmf.rb can't find header files for ruby'
...is no ruby development environment installed. Development env is needed to compile ruby extensions, which are mostly written in C. Proxy has nothing to do with the problem: everything is downloaded fine, just compilation fails.
I would suggest you to install ruby-dev (ruby-devel for rpm-based distr...
How do I do a not equal in Django queryset filtering?
In Django model QuerySets, I see that there is a __gt and __lt for comparitive values, but is there a __ne / != / <> ( not equals ?)
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Remove duplicates from an array of objects in JavaScript
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Signed versus Unsigned Integers
...ualise is to use the leftmost bit as a flag (sign and magnitude), but more common is two's complement. Both are in use in most modern microprocessors — floating point uses sign and magnitude, while integer arithmetic uses two's complement.
signed integers can hold both positive and negative n...
How to store custom objects in NSUserDefaults
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How to find patterns across multiple lines using grep?
...make things easier, but grep will work too. For example, see stackoverflow.com/a/7167115/123695
– Michael Mior
Apr 28 '14 at 18:56
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