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Why java.lang.Object is not abstract? [duplicate]

...e argued that some of the methods would benefit from this. Take hashCode() and equals() for instance, there would probably have been a lot less frustration around the complexities of these two if they had both been made abstract. This would require developers to figure out how they should be impleme...
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Git: “Not currently on any branch.” Is there an easy way to get back on a branch, while keeping the

So I've done some work in the repository and when I'm about to commit I realize that I'm not currently on any branch. 9 Ans...
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Which version of Perl should I use on Windows? [closed]

... Strawberry Perl is just getting better and better. One problem I've repeatedly had with ActiveState is that my modules sometimes fail to install because I need an upgrade to a core module, but they won't allow that. Thus, everybody who doesn't use Windows can us...
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Leaflet - How to find existing markers, and delete markers?

...sed by the latest. So one way to go is to create a global array of marker, and you add your marker in the global array. share | improve this answer | follow | ...
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Relative imports in Python 3

... unfortunately, this module needs to be inside the package, and it also needs to be runnable as a script, sometimes. Any idea how I could achieve that? It's quite common to have a layout like this... main.py mypackage/ __init__.py mymodule.py myothermodule.py ...w...
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Very Long If Statement in Python [duplicate]

...r example: if (abcdefghijklmnopqrstuvwxyz > some_other_long_identifier and here_is_another_long_identifier != and_finally_another_long_name): # ... your code here ... pass share | ...
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Rails Admin vs. ActiveAdmin [closed]

I've been looking into some rails admin plugins and came across these: 3 Answers 3 ...
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Why don't :before and :after pseudo elements work with `img` elements? [duplicate]

... Note. This specification does not fully define the interaction of :before and :after with replaced elements (such as IMG in HTML). This will be defined in more detail in a future specification. I guess this means they don't work with img elements (for now). Also see this answer. ...
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How to check for file existence [duplicate]

... Check out Pathname and in particular Pathname#exist?. File and its FileTest module are perhaps simpler/more direct, but I find Pathname a nicer interface in general. s...
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Correct way to override Equals() and GetHashCode() [duplicate]

...eone could show me the correct what of implementing a override of Except() and GetHashCode() for my class. 3 Answers ...