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How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?

...not decryption, which can save code space. CTR is used if you want good parallelization (ie. speed), instead of CBC/OFB/CFB. XTS mode is the most common if you are encoding a random accessible data (like a hard disk or RAM). OCB is by far the best mode, as it allows encryption and authentication in ...
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Visual Studio keyboard shortcut to automatically add the needed 'using' statement

...ted Jun 28 '16 at 22:06 Aaron Small 70266 silver badges55 bronze badges answered Sep 29 '08 at 14:42 Orion Adr...
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AsyncTask threads never die

...uriosity, why is it designed like that? Why not just end the threads after all of the methods have returned? – Computerish Jun 20 '10 at 2:38 7 ...
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Variable is accessed within inner class. Needs to be declared final

...anges made in the inner class did not persist in the enclosing scope. Basically, what happens in the inner class stays in the inner class. I wrote a more in-depth explanation here. It also explains why instance and global variables do not need to be declared final. ...
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Blocks and yields in Ruby

...trary segments of code. When a method expects a block, it invokes it by calling the yield function. This is very handy, for instance, to iterate over a list or to provide a custom algorithm. Take the following example: I'm going to define a Person class initialized with a name, and provide a ...
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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?

... What if I have a separate called Counts and instead of count the rows of the grouped type, I need to add along the column Counts. – Abhishek Bhatia Oct 2 '17 at 21:28 ...
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Get GPS location from the web browser

...egrated Google Maps, I need to fill the 'From' field of Google Maps dynamically. 6 Answers ...
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Prevent linebreak after

...y:inline; OR float:left; OR display:inline-block; -- Might not work on all browsers. What is the purpose of using a div here? I'd suggest a span, as it is an inline-level element, whereas a div is a block-level element. Do note that each option above will work differently. display:inline; w...
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ggplot with 2 y axes on each side and different scales

I need to plot a bar chart showing counts and a line chart showing rate all in one chart, I can do both of them separately, but when I put them together, I scale of the first layer (i.e. the geom_bar ) is overlapped by the second layer (i.e. the geom_line ). ...
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Calling pylab.savefig without display in ipython

...tion between IPython and matplotlib.pylab in this regard. But, when I call pylab.savefig("test.png") the current figure get's displayed in addition to being saved in test.png . When automating the creation of a large set of plot files, this is often undesirable. Or in the situation that an in...