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What is a semaphore?
A semaphore is a programming concept that is frequently used to solve multi-threading problems. My question to the community:
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@RequestBody and @ResponseBody annotations in Spring
... @RequestBody and @ResponseBody annotations in Spring 3? What are they for? Any examples would be great.
4 Answers
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Attempt to present UIViewController on UIViewController whose view is not in the window hierarchy
Just started using Xcode 4.5 and I got this error in the console:
33 Answers
33
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How does Python's super() work with multiple inheritance?
I'm pretty much new in Python object oriented programming and I have trouble
understanding the super() function (new style classes) especially when it comes to multiple inheritance.
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How can I dynamically set the position of view in Android?
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For anything below Honeycomb (API Level 11) you'll have to use setLayoutParams(...).
If you can limit your support to Honeycomb and up you can use the setX(...), setY(...), setLeft(...), setTop(...), etc.
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How do 20 questions AI algorithms work?
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You can think of it as the Binary Search Algorithm.
In each iteration, we ask a question, which should eliminate roughly half of the possible word choices. If there are total of N words, then we can expect to get an answer after log2(N) questions.
With 20 question, we...
Objective-C: Calling selectors with multiple arguments
...e parameter (the name is misleading, it looks like it is part of the selector's signature).
If you call the function in this manner:
[self performSelector:@selector(myTest:) withObject:myString];
It will work.
But, as the other posters have suggested, you may want to rename the method:
- (void...
pinterest api documentation [closed]
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There is no Official API Docs available for Pinterest as of today.
But there is the unofficial documentation for v2 here: http://tijn.bo.lt/pinterest-api
share
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Bootstrap: Position of dropdown menu relative to navbar item
... release of Bootstrap 4. If one of the below solutions doesn't seem to be working double check the version number of Bootstrap that you're importing and try a different one.
Bootstrap 3
Before v3.1.0
You can use the pull-right class to line the right hand side of the menu up with the caret:
<...
MongoDB - admin user not authorized
I am trying to add authorization to my MongoDB.
I am doing all this on Linux with MongoDB 2.6.1.
My mongod.conf file is in the old compatibility format
(this is how it came with the installation).
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