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Java Try Catch Finally blocks without Catch
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I have to say, this covers all the bases!
– Oscar Bravo
Mar 14 '18 at 15:37
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Meaning of epsilon argument of assertEquals for double values
... numbers. With this delta value you can control the evaluation of equality based on a error factor.
Also some floating-point values can have special values like NAN and -Infinity/+Infinity which can influence results.
If you really intend to compare that two doubles are exactly equal it is best c...
How to install python modules without root access?
...ven without root access. There's a standard way to do this using site.USER_BASE which defaults to something like $HOME/.local or $HOME/Library/Python/2.7/bin and is included by default on the PYTHONPATH
To do this, create a .pydistutils.cfg in your home directory:
cat > $HOME/.pydistutils.cfg &...
rgdal package installation
...ibgdal1-dev libproj-dev
One tip that can be useful, still under a Debian based system, is to install the apt-file package and run :
$ sudo apt-file update
Then, when you get an error such as :
configure: error: proj_api.h not found in standard or given locations.
You can use the following co...
Select datatype of the field in postgres
...table'::regclass::oid; -- example way to find pg_class entry for a table
Based on https://gis.stackexchange.com/a/97834.
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Meaning of = delete after function declaration
... class in a hierarchy is typically
a disaster: given only a pointer to a base, we simply don’t know what
members the derived class has, so we can’t know how to copy
them. So, the best thing to do is usually to delete the default copy
and move operations, that is, to eliminate the default...
Convert list to array in Java [duplicate]
...sized array (which might be faster in
older Java versions or non-HotSpot based JVMs).
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How many random elements before MD5 produces collisions?
...n separate directories. I use this to store user files in separate folders based on their user ID in S3.
For example: "mybucket/users/1234/somefile.jpg". It's not exactly the same as a directory in a file system, but the S3 API has some features that let it work almost the same. I can ask it to li...
Angularjs: 'controller as syntax' and $watch
...ntation $watchGroup should just work fine when using $ctrl.name since it's based on $watch.
– Niels Steenbeek
Oct 24 '16 at 15:18
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Sockets: Discover port availability using Java
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The try/catch socket based solutions , might not yield accurate results (the socket address is "localhost" and in some cases the port could be "occupied" not by the loopback interface and at least on Windows I've seen this test fails i.e. the pro...