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How to securely store access token and secret in Android?
...etrieval of cryptographic keys which will be used to encrypt our tokens in order to store them in e.g. SharedPreferences or a database. The keys are not stored within an application's process, so they are harder to be compromised.
So more relevant than a place is how they can be itself secure e.g. ...
How can I get a view's current width and height when using autolayout constraints?
...implement the entire constraint-solving logic of the auto layout system in order to interpret those constraints. Instead, what you should do is just ask auto layout to update that layout, so that it solves the constraints and updates the value of view.bounds with the correct solution, and then you i...
Python extending with - using super() Python 3 vs Python 2
...does is: it calls the method from the next class in MRO (method resolution order). The MRO for C is: (C, A, B, object). You can print C.__mro__ to see it.
So, C inherits __init__ from A and super in A.__init__ calls B.__init__ (B follows A in MRO).
So by doing nothing in C, you end up calling both...
How to read a large file - line by line?
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Two memory efficient ways in ranked order (first is best) -
use of with - supported from python 2.5 and above
use of yield if you really want to have control over how much to read
1. use of with
with is the nice and efficient pythonic way to read large files....
How to correctly close a feature branch in Mercurial?
...ant to merge results back to the default branch and close feature-x in order to get rid of it in the output of hg branches .
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What are the use cases for selecting CHAR over VARCHAR in SQL?
...omerNumber on a demographic table, or CodeID on a decode table, or perhaps OrderNumber on an order table. By using char, the query engine can more quickly perform the join because it can do straight pointer arithmetic (deterministically) rather than having to move it's pointers a variable amount of...
Combining C++ and C - how does #ifdef __cplusplus work?
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It's about the ABI, in order to let both C and C++ application use C interfaces without any issue.
Since C language is very easy, code generation was stable for many years for different compilers, such as GCC, Borland C\C++, MSVC etc.
While C++ ...
Override Java System.currentTimeMillis for testing time sensitive code
...be used as the first main class before your real main class very easily in order to run your application (or even whole appserver) in a different time. Of course, this is intented for testing purposes mainly, not for production environment.
EDIT July 2014: JMockit changed a lot lately and you are b...
Difference between applicationContext.xml and spring-servlet.xml in Spring Framework
...ns defined in springweb-servlet.xml are instantiated.
So the instantiation order is: the root (application context), then FrameworkServlet.
Now it should be clear why they are important in which scenario.
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Assign pandas dataframe column dtypes
... I have 1000's of files from cisco logs that I need to parse manually.
In order to be flexible with fields and types I have successfully tested using StringIO + read_cvs which indeed does accept a dict for the dtype specification.
I usually get each of the files ( 5k-20k lines) into a buffer and ...