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What is the difference between JDK and JRE?
... you still need the JDK installed. For example, if you are deploying a web application with JSP, you are technically just running Java programs inside the application server. Why would you need the JDK then? Because the application server will convert JSP into Java servlets and needs to use the JDK ...
Why do people say that Ruby is slow? [closed]
... Ruby to be slow but then
again, I'm just using it to make
simple CRUD apps and company blogs.
What sort of projects would I need to
be doing before I find Ruby becoming
slow? Or is this slowness just
something that affects all programming
languages?
Ruby probably wouldn't serve you ...
Why use def main()? [duplicate]
...a function will benefit me, then I refactor the code and do it. This also happens when I write bash scripts.
Even if you put code inside the main function, you are not required to write it exactly like that. A neat variation could be:
import sys
def main(argv):
# My code here
pass
if __nam...
Error “library not found for” after putting application in AdMob
I am getting an error after I put my application in an AdMob. The app was working until today. The error is the following:
...
Applicatives compose, monads don't
...
If we compare the types
(<*>) :: Applicative a => a (s -> t) -> a s -> a t
(>>=) :: Monad m => m s -> (s -> m t) -> m t
we get a clue to what separates the two concepts. That (s -> m t) in the type of (>>=) show...
How to check “hasRole” in Java Code with Spring Security?
...
Spring Security 3.0 has this API
SecurityContextHolderAwareRequestWrapper.isUserInRole(String role)
You'll have to inject the wrapper, before you use it.
SecurityContextHolderAwareRequestWrapper
share
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The source was not found, but some or all event logs could not be searched
...rce, you will see an exception like the one you have described.
The usual approach for handling such issues is to register event log sources at installation time (under an administrator account), then assume that they exist at runtime, allowing any resulting exception to be treated as unexpected if...
How to use ternary operator in razor (specifically on HTML attributes)?
...; inside my view to be based on some value
and that text is retrieved form App string Resources
so, this @() is the solution
<a href='#'>
@(Model.ID == 0 ? Resource_en.Back : Resource_en.Department_View_DescartChanges)
</a>
if the text is not from App string Resources use this...
Can I change the size of UIActivityIndicator?
...n standardized elements alone. User have been taught that certain elements appear in a certain size and that they mean specific things. Altering the standard appearance alters the interface grammar and confuses the user.
sh...
Delete all the queues from RabbitMQ?
...admin delete queue name='queuename'
Because of the output format, doesn't appear you can grep the response from list queues. Alternatively, if you're just looking for a way to clear everything (read: reset all settings, returning the installation to a default state), use:
rabbitmqctl stop_app
rabb...