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How do I check that a Java String is not all whitespaces?

... @Andreas_D: Heh, I got my orders! The OP said he wanted to check a string or char array, he never said anything about nulls! :) *checks the fine print in the contract* "null is not a string!" – Carl Smotricz Jul ...
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How to disable/enable select field using jQuery?

...a" name="pizza" value="yes"> <label for="pizza">I would like to order a</label> <select id="pizza_kind" name="pizza_kind"> <option>(choose one)</option> <option value="margaritha">Margaritha</option> <option value="hawai">Hawai</o...
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Cannot create an NSPersistentStoreCoordinator with a nil model

... Instead of deleting it you may eventually edit it in order to change the filename stored to the latest version of youl xcdatamodel – furins Jun 24 '14 at 17:18 ...
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How to round up the result of integer division?

...arenthesis to the simplified version so that it doesn't rely on a specific order of operations. i.e., ((records - 1) / recordsPerPage) + 1. – Martin Feb 5 '16 at 17:57 1 ...
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Injecting a mock into an AngularJS service

...ds $q? Then you can't inject $q into the mock prior to calling module() in order to register the mock. Any thoughts? – Jake May 7 '15 at 15:15 4 ...
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How to add lines to end of file on Linux

...o abc >> def' will 'sudo abc' and then '>> def' the output. In order to sudo the entire 'abc >> def' bit, you must do something like this: sudo sh -c "echo 'VNCSERVERS=\"1:root\"' >> /etc/sysconfig/configfile" (note that the inner double-quotes must be escaped) ...
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Could not find stored procedure 'dbo.aspnet_CheckSchemaVersion'

...e command then you can simply run 'aspnet_regsql.exe' executable file. In order to locate this file open your RUN Command Box by pressing Windows Key + r and put below command in that %windir%\Microsoft.NET\Framework\v4.0.30319 and Hit enter then find 'aspnet_regsql.exe' file. It will open a wizard...
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In a Git repository, how to properly rename a directory?

... ‘foldername’ failed: Invalid argument And here is what you can do in order to make it work:- git mv foldername tempname && git mv tempname folderName This splits up the renaming process by renaming the folder at first to a completely different foldername. After renaming it to the di...
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How to call a Parent Class's method from Child Class in Python?

...sing inherited methods that have been overridden in a class. The search order is same as that used by getattr() except that the type itself is skipped. Example: class A(object): # deriving from 'object' declares A as a 'new-style-class' def foo(self): print "foo" class B(A): ...
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How do I run a shell script without using “sh” or “bash” commands?

...ause when we run it from the terminal we will only need to type myShell in order to run our command! Now, in nano the top line MUST be #!/bin/bash then you may leave a new line before continuing. For demonstration I will add a basic Hello World! response So, I type the following: echo Hello World! ...