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Why does int num = Integer.getInteger(“123”) throw NullPointerException?

... NullPointerException!!! Here's a quote from Effective Java 2nd Edition, Item 49: Prefer primitive types to boxed primitives: In summary, use primitives in preference to boxed primitive whenever you have the choice. Primitive types are simpler and faster. If you must use boxed primitives, be c...
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How to call a method after a delay in Android

... Otherwise on normal thread, you need to implement looper which is not the best version I think – olivier_sdg Jan 10 '13 at 14:59 2 ...
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How to refresh / invalidate $resource cache in AngularJS

...ork with $delete. The next call will pull from cache again and the deleted item will reappear. Can anyone confirm? – Lukus Apr 24 '14 at 21:32 ...
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How to require a controller in an angularjs directive

... same DOM element) that is repeated using ng-repeat. Imagine each repeated item has a directive that needs a shared state or logic between them. – CMCDragonkai Aug 8 '13 at 7:53 2 ...
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How can I deploy an iPhone application from Xcode to a real iPhone device?

...o allow the use of this certificate: Launch Keychain Access.app. With no items selected, from the Keychain menu select Certificate Assistant, then Create a Certificate. Name: iPhone Developer Certificate Type: Code Signing Let me override defaults: Yes Click Continue Validity: 3650 days Clic...
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LINQ .Any VS .Exists - What's the difference?

...ny also has an overload which takes no parameters and simply looks for any item in the enumerable. Exists has no such overload. share | improve this answer | follow ...
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How to get a reversed list view on a list in Java?

... @Filipe de Lima Brito: ProGuard is still the best solution for library size, though there are likely improvements we can make. In any case, I don't think library size is relevant in any way to this answer. – ColinD Jul 15 '15 at 18...
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What does the slash mean in help() output?

...-in function len in module builtins: len(obj, /) Return the number of items in a container. Positional only parameters make underlying c/library functions easy to maintain. It allows parameters names of positional only parameters to be changes in future without risk of breaking client code th...
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What are these attributes: `aria-labelledby` and `aria-hidden`

... aria-hidden="true" will hide decorative items like glyphicon icons from screen readers, which doesn't have meaningful pronunciation so as not to cause confusions. It's a nice thing do as matter of good practice. ...
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Position Absolute + Scrolling

... So gaiour is right, but if you're looking for a full height item that doesn't scroll with the content, but is actually the height of the container, here's the fix. Have a parent with a height that causes overflow, a content container that has a 100% height and overflow: scroll, and a ...