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How does Java handle integer underflows and overflows and how would you check for it?

...eld a negative value, so an overflow occurs if arg1 + arg2 > MAX_VALUE. Now the maximum value that could result would be MAX_VALUE + MAX_VALUE (the extreme case both arguments are MAX_VALUE). For a byte (example) that would mean 127 + 127 = 254. Looking at the bit representations of all values th...
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Test iOS app on device without apple developer program or jailbreak

...lso, you must do this for every .sdk you want to be able to run on device. Now, in your project settings, you can change Code Signing Identity to Don't Code Sign. Your app should now build and install on your device successfully. UPDATE: There are some issues with iOS 5.1 SDK that this method may no...
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Django: “projects” vs “apps”

.... Simple as that. All this "project"/"app" stuff is just python packages. Now, how are you supposed to do it? Or rather, how might I do it? Well, if you create a significant piece of reusable functionality, like say a markup editor, that's when you create a "top level app" which might contain widge...
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python generator “send” function purpose?

... @Tommy: I would say if you really wanna know check out this presentation and work through it all. A short answer won't suffice because then you'll just say "But can't I just do it like this?" etc. – Claudiu Oct 10 '13 at 18:45 ...
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Why does SIGPIPE exist?

... You're right, I don't know why I accepted that in the first place. This answer makes sense, though IMO it's odd that e.g. on Linux this laziness is achieved by kernel and not the libc. – Shea Levy Mar 19 '14 a...
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Xcode iOS 8 Keyboard types not supported

I have a UITextField Ctrl-dragged as an @Outlet in my .swift class. Now in viewDidLoad i'm using this code 10 Answe...
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How can Xcode 6 adaptive UIs be backwards-compatible with iOS 7 and iOS 6?

...lasses that have a Compact Height. This has been confirmed by Apple and is now stated directly in the documentation: For apps supporting versions of iOS earlier than iOS 8, most size classes are backward compatible. Size classes are backward compatible when: - The app is built using Xcode version 6...
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Replacing a fragment with another fragment inside activity group

...ly cannot replace a fragment, but rather you can manually remove the views now present in the container and put a fragment there instead if required. – Subin Sebastian Dec 21 '15 at 6:40 ...
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Single script to run in both Windows batch and Linux Bash?

...CHO OFF GOTO :CMDSCRIPT ::CMDLITERAL echo "I can write free-form ${SHELL} now!" if :; then echo "This makes conditional constructs so much easier because" echo "they can now span multiple lines." fi exit $? :CMDSCRIPT ECHO Welcome to %COMSPEC% Universal comments, of course, can be done with ...
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How to calculate the running time of my program? [duplicate]

I wrote a program and now I want to calculate the total running time of my program from start to end. 6 Answers ...