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Picking a random element from a set
...andom().nextInt(size); // In real life, the Random object should be rather more shared than this
int i = 0;
for(Object obj : myhashSet)
{
if (i == item)
return obj;
i++;
}
share
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Go Error Handling Techniques [closed]
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Defining a variable with or without export
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How do I ZIP a file in C#, using no 3rd-party APIs?
...ng .NET 3.5? You could use the ZipPackage class and related classes. Its more than just zipping up a file list because it wants a MIME type for each file you add. It might do what you want.
I'm currently using these classes for a similar problem to archive several related files into a single fil...
In Windows Azure: What are web role, worker role and VM role?
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EDIT 3/3/2013 - updated to reference UDP endpoints, Virtual Machines, and more languages
EDIT 6/6/2013 - updated to reflect the discontinuation of VM Role, and update to web/worker role baseline OS images to Windows Server 2012
Good link by @Vladimir. A bit more clarification: All roles (web, wor...
How to install PyQt4 on Windows using pip?
...p27 means C-python version 2.7, cp35 means python 3.5, etc.
Since Qt is a more complicated system with a compiled C++ codebase underlying the python interface it provides you, it can be more complex to build than just a pure python code package, which means it can be hard to install it from source....
Regexp Java for password validation
...s will hardly make any difference, for much longer strings it could be the more efficient variant.
The most efficient variant (but hardest to read and maintain, therefore the most error-prone) would be (?=[^xyz]*[xyz]), of course. For a regex of this length and for this purpose, I would dis-recomme...
How to use if-else option in JSTL
... Aside from the wrapper tag (choose), I don't see how this is any more verbose than if/elseif/else would be. One wrapper tag hardly constitutes 'clunky as hell', no?
– Steven Benitez
Jan 8 '11 at 18:25
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How to automatically start a service when running a docker container?
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no, see more in stackoverflow.com/questions/46800594/…
– Larry Cai
Mar 9 '19 at 15:10
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