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ADT requires 'org.eclipse.wst.sse.core 0.0.0' but it could not be found

...the Eclipse components for the SDK. I was able to get DDMS to install when selecting it by itself. 29 Answers ...
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iOS - Dismiss keyboard when touching outside of UITextField

... the view, and then call resign first responder on the UITextField on it's selector. The code: In viewDidLoad UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)]; [self.view addGestureRecognizer:tap]; In dismissKeyboard: -(void)...
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When and why are database joins expensive?

...s back to mitigating the size of the working set. Joins involving properly selected keys with correctly set up indexes are cheap, not expensive, because they allow significant pruning of the result before the rows are materialised. Materialising the result involves bulk disk reads which are the mo...
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AtomicInteger lazySet vs. set

What is the difference between the lazySet and set methods of AtomicInteger ? The documentation doesn't have much to say about lazySet : ...
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@import vs #import - iOS 7

I am playing around with some of the new iOS 7 features and working with some of the Image Effects as discussed in the WWDC video "Implementing Engaging UI on iOS". For producing a blur effect within the source code for the session, UIImage was extended via a category which imports UIKit like so: ...
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.NET console application as Windows service

I have console application and would like to run it as Windows service. VS2010 has project template which allow to attach console project and build Windows service. I would like to not add separated service project and if possible integrate service code into console application to keep console appl...
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How do I detect what .NET Framework versions and service packs are installed?

...ncies, .NET 3.0 adds additional functionality to .NET 2.0 so both .NET 2.0 and .NET 3.0 must both evaulate as being installed to correctly say that .NET 3.0 is installed. Likewise, .NET 3.5 adds additional functionality to .NET 2.0 and .NET 3.0, so .NET 2.0, .NET 3.0, and .NET 3. should all evaluate...
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jQuery: Check if div with certain class name exists

...presumably because it changes the native features jQuery can use to do the selection. Here's a test case where the div exists, and here's one where it doesn't exist. – T.J. Crowder Apr 26 '11 at 6:10 ...
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Bypass confirmation prompt for pip uninstall

...e the yeses would get gobbled by the pip freeze not the xargs argument/command, pip uninstall. – hobs May 25 '13 at 0:10 3 ...
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Is there a way to iterate over a dictionary?

...d a key in order to get a value . But how can I iterate over all keys and values in a NSDictionary , so that I know what keys there are, and what values there are? I know there is something called a for-in-loop in JavaScript . Is there something similar in Objective-C ? ...