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How to send objects in NIB files to front/back?

How can I adjust the "z"-positions of objects (e.g. sending UIImageView s to the front/back) in the integrated interface builder in Xcode? ...
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Performance optimization strategies of last resort [closed]

...re are plenty of performance questions on this site already, but it occurs to me that almost all are very problem-specific and fairly narrow. And almost all repeat the advice to avoid premature optimization. ...
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What does do?

... October 2015 Update This answer was posted several years ago and now the question really should be should you even consider using the X-UA-Compatible tag on your site? with the changes Microsoft has made to its browsers (more ...
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Should I learn C before learning C++? [closed]

I visited a university CS department open day today and in the labs tour we sat down to play with a couple of final-year projects from undergraduate students. One was particularly good - a sort of FPS asteroids game. I decided to take a peek in the src directory to find it was done in C++ (most of...
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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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What are the most-used vim commands/keypresses?

I'm a Ruby programming trying to switch from Textmate to MacVim, and I'm having trouble wading through the gargantuan lists of things you can do in VIM and all of the keypresses for them. I'm tired of hearing "You can use 'I' for inserting text, or 'a' for appending text after the character, or 'A' ...
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How can I pass a parameter to a Java Thread?

Can anyone suggest to me how I can pass a parameter to a thread? 18 Answers 18 ...
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What is Gradle in Android Studio?

Gradle is a bit confusing to me, and also for any new Android developer. Can anyone explain what Gradle in Android Studio is and what its purpose is? Why is it included in Android Studio? ...
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Position Relative vs Absolute?

... CSS Positioning position: absolute; Absolute positioning is the easiest to understand. You start with the CSS position property: position: absolute; This tells the browser that whatever is going to be positioned should be removed from the normal flow of the document and will be placed in an ex...
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How to make Java honor the DNS Caching Timeout?

...a fixed domain name. Through some DNS magic, the domain name is resolved into an IP that's closest to the server with least load. For the load-balancing to work, the application server needs to honor the TTL from DNS response and to resolve the domain name again when cache times out. However, I coul...