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Difference between setUp() and setUpBeforeClass()

When unit testing with JUnit, there are two similar methods, setUp() and setUpBeforeClass() . What is the difference between these methods? Also, what is the difference between tearDown() and tearDownAfterClass() ? ...
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Why does git perform fast-forward merges by default?

...ex history, non-fast-forward merging may make the history easier to understand, and make it easier to revert a group of commits. Warning: Non-fast-forwarding has potential side effects as well. Please review https://sandofsky.com/blog/git-workflow.html, avoid the 'no-ff' with its "checkpoint commit...
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How to discard local commits in Git?

I'd been working on something, and decided it was completely screwed...after having committed some of it. So I tried the following sequence: ...
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How can I find the first occurrence of a sub-string in a python string?

... @Regressor: look into regex and word boundaries. – mechanical_meat Apr 12 at 23:29 add a comment  |  ...
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Which HTML5 tag should I use to mark up an author’s name?

... Both rel="author" and <address> are designed for this exact purpose. Both are supported in HTML5. The spec tells us that rel="author" can be used on <link> <a>, and <area> elements. Google also recommends its usage. Com...
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Detect & Record Audio in Python

...ssing. The problem is that I need to determine when there is audio present and then record it, stop when it goes silent and then pass that file to the processing module. ...
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Fixed position but relative to container

...on. It is now possible to center content of an dynamic size (horizontally and vertically) with the help of the magic of CSS3 transform. The same principle applies, but instead of using margin to offset your container, you can use translateX(-50%). This doesn't work with the above margin trick bec...
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How to take column-slices of dataframe in pandas

...achine learning data from a CSV file. The first 2 columns are observations and the remaining columns are features. 10 Answe...
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Significance of a .inl file in C++

... .inl files are never mandatory and have no special significance to the compiler. It's just a way of structuring your code that provides a hint to the humans that might read it. I use .inl files in two cases: For definitions of inline functions...
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Dictionary vs Object - which is more efficient and why?

What is more efficient in Python in terms of memory usage and CPU consumption - Dictionary or Object? 8 Answers ...