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Determine if a String is an Integer in Java [duplicate]

... Scanner(s.trim()); if(!sc.hasNextInt(radix)) return false; // we know it starts with a valid int, now make sure // there's nothing left! sc.nextInt(radix); return !sc.hasNext(); } If best practices don't matter to you, or you want to troll the guy who does your code reviews, t...
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When to use UICollectionView instead of UITableView?

...do that with collectionview). I was always using tableviews by default but now I doubt if that makes sense to switch to collectionviews instead. Am I missing something? – vir us Aug 29 '17 at 16:11 ...
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How to avoid having class data shared among instances?

...f.x A change method sets self.temp Pretty straight forward so far yeah? Now let's start playing around with this class. Let's initialize this class first: a = A('Tesseract') Now do the following: >>> print(a.temp) Skyharbor >>> print(A.temp) Skyharbor Well, a.temp worked ...
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How can I find the number of arguments of a Python function?

How can I find the number of arguments of a Python function? I need to know how many normal arguments it has and how many named arguments. ...
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How do I install pip on macOS or OS X?

...y have access to easy_install considering you are using macOS/OSX. ℹ️ Now, all you have to do is run the following command. sudo easy_install pip After that, pip will be installed and you'll be able to use it for installing other packages. Let me know if you have any problems installing pip...
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What does pylint's “Too few public methods” message mean

...ough if a class seems like the best choice, use it. pylint doesn't always know what's best. Do note that namedtuple is immutable and the values assigned on instantiation cannot be modified later. share | ...
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“[notice] child pid XXXX exit signal Segmentation fault (11)” in apache error.log [closed]

...pm ?? 0:00.02 /Applications/MAMP/Library/bin/httpd -k start ... Now attach gdb to one of the child processes, in this case PID 690 (columns are UID, PID, PPID, ...) $ sudo gdb (gdb) attach 690 Attaching to process 690. Reading symbols for shared libraries . done Reading symbols for share...
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What's the correct way to communicate between controllers in AngularJS?

... in this answer have been resolved in angular.js version 1.2.7. $broadcast now avoids bubbling over unregistered scopes and runs just as fast as $emit. So, now you can: use $broadcast from the $rootScope listen using $on from the local $scope that needs to know about the event Original Answe...
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Getter and Setter declaration in .NET [duplicate]

...rty { get { return _myProperty; } set { _myProperty = value; } } Now you can add code that validates the value in your setter: set { if (string.IsNullOrWhiteSpace(value)) throw new ArgumentNullException(); _myProperty = value; } Properties can also have different access...
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Editing screenshots in iTunes Connect after iOS app was approved

... Apple support now got back with the (somehow not too satisfactory) answer: If your app is currently for sale on the App Store, you will need to submit an update in order to change your app screenshots. If you have any furthe...