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What is the difference between 'E', 'T', and '?' for Java generics?
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Well there's no difference between the first two - they're just using different names for the type parameter (E or T).
The third isn't a valid declaration - ? is used as a wildcard which is used when providing a type argument, e.g. List<?> foo = ... means that foo refers to a l...
Why would a JavaScript variable start with a dollar sign? [duplicate]
I quite often see JavaScript with variables that start with a dollar sign. When/why would you choose to prefix a variable in this way?
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django unit tests without a db
Is there a possibility to write django unittests without setting up a db? I want to test business logic which doesn't require the db to set up. And while it is fast to setup a db, I really don't need it in some situations.
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How to check internet access on Android? InetAddress never times out
I got a AsyncTask that is supposed to check the network access to a host name. But the doInBackground() is never timed out. Anyone have a clue?
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How does functools partial do what it does?
I am not able to get my head on how the partial works in functools.
I have the following code from here :
7 Answers
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Flexbox: center horizontally and vertically
How to center div horizontally, and vertically within the container using flexbox. In below example, I want each number below each other (in rows), which are centered horizontally.
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No appenders could be found for logger(log4j)?
I have put log4j to my buildpath, but I get the following message when I run my application:
31 Answers
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Download file from web in Python 3
...am that will download a .jar (java) file from a web server, by reading the URL that is specified in the .jad file of the same game/application. I'm using Python 3.2.1
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How to add one day to a date? [duplicate]
I want to add one day to a particular date. How can I do that?
18 Answers
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How do I move an existing Git submodule within a Git repository?
I would like to change the directory name of a Git submodule in my Git superproject.
10 Answers
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