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HashMap get/put complexity

...e. In JDK 8, HashMap has been tweaked so that if keys can be compared for ordering, then any densely-populated bucket is implemented as a tree, so that even if there are lots of entries with the same hash code, the complexity is O(log n). That can cause issues if you have a key type where equality ...
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Build error: You must add a reference to System.Runtime

... I had to set 'Copy local' to true in order to make it work – Phate01 Sep 14 '18 at 8:31  |  show 3 more ...
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Could not reserve enough space for object heap

... Anyone found a solution that actually work 100% of the time? This solution solves the problem temporarily but then suddenly it comes back. I've got 16GB ram and I'm tired of this sh*t. Everything was better in the old days :[ – Nilzor ...
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How do I update a GitHub forked repository?

...rebased your branch onto upstream/master you may need to force the push in order to push it to your own forked repository on GitHub. You'd do that with: git push -f origin master You only need to use the -f the first time after you've rebased. ...
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How to write to Console.Out during execution of an MSTest test

...with a file upload feature in our web application. It only happens occasionally and without any special pattern. We have been trying to figure it out for a long time, adding debug information anywhere we can think it might help, crawling the logs etc, but we have not been able to reproduce or figure...
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How to know if an object has an attribute in Python

...n is that, if the property is likely to be there most of the time, simply call it and either let the exception propagate, or trap it with a try/except block. This will likely be faster than hasattr. If the property is likely to not be there most of the time, or you're not sure, using hasattr will pr...
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How to add onload event to a div element

...d of the html document just before the </body> tag? If yes, does the order in which they're written matter? – Neo Oct 10 '17 at 9:34 ...
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How to print a groupby object

...like a bug to me. I created an issue. But a groupby operation doesn't actually return a DataFrame sorted by group. The .head() method is a little misleading here -- it's just a convenience feature to let you re-examine the object (in this case, df) that you grouped. The result of groupby is separat...
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Difference between Ctrl+Shift+F and Ctrl+I in Eclipse

... just format tabs/whitespaces in code and pressing CTRL + SHIFT + F format all code that is format tabs/whitespaces and also divide code lines in a way that it is visible without horizontal scroll. share | ...
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Package objects

... Normally you would put your package object in a separate file called package.scala in the package that it corresponds to. You can also use the nested package syntax but that is quite unusual. The main use case for package object...