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Interfaces with static fields in java for sharing 'constants'
...or, see http://scg.unibe.ch/archive/papers/Scha03aTraits.pdf. For a short description of how traits in Scala compare with interfaces in Java, see http://www.codecommit.com/blog/scala/scala-for-java-refugees-part-5. In the context of teaching OO design, simplistic rules like asserting that interfac...
Error - trustAnchors parameter must be non-empty
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This description is factually incorrect, and only fixes the problem in the same sense as reinstalling Windows might fix an issue. There is no need to remove all Java packages. If you want to go this way, you only need to install t...
Rotating a point about another point (2D)
... pivot point to the new coordinates (x' + a, y' + b).
Following the above description:
a 2D clockwise theta degrees rotation of point (x, y) around point (a, b) is:
Using your function prototype: (x, y) -> (p.x, p.y); (a, b) -> (cx, cy); theta -> angle:
POINT rotate_point(float cx, floa...
Can I create more than one repository for github pages?
...you can change the publishing source in the repository settings.
A better description is available in the GitHub Pages documentation, including options for using custom domain names.
(since April 2013, all username.github.com are now username.github.io)
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Cost of len() function
...the length is small (O(1) in big-O notation) and mostly consists of [rough description, written in Python terms, not C terms]: look up "len" in a dictionary and dispatch it to the built_in len function which will look up the object's __len__ method and call that ... all it has to do is return self.l...
How can I find the location of origin/master in git, and how do I change it?
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Note that this description is incomplete. I currently am experiencing # On branch master # Your branch is ahead of 'origin/master' by 3 commits. But git diff origin/master shows nothing, (and the --cached option does not change this). ...
What is the fastest way to get the value of π?
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Here's a general description of a technique for calculating pi that I learnt in high school.
I only share this because I think it is simple enough that anyone can remember it, indefinitely, plus it teaches you the concept of "Monte-Carlo" me...
How to write a Unit Test?
...uires that you have a specification for the SUT. This might be an explicit description, or an implicit specification in your head of what is expected.
Automated unit testing therefore requires a precise and unambiguous specification of the class or method you are testing.
But you needed that specifi...
API pagination best practices
...gave above).
One problem may be if you add a data item, but based on your description it sounds like they would be added to the end (if not, let me know and I'll see if I can improve on this).
share
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How can I debug git/git-shell related problems?
...es a curl full trace dump of all incoming and outgoing data, including descriptive information, of the git transport protocol.
This is similar to doing curl --trace-ascii on the command line.
This option overrides setting the GIT_CURL_VERBOSE environment variable.
You can see that new...