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multiple packages in context:component-scan, spring config

... The following approach is correct: <context:component-scan base-package="x.y.z.service, x.y.z.controller" /> Note that the error complains about x.y.z.dao.daoservice.LoginDAO, which is not in the packages mentioned above, perhaps you forgot to add it: <context:component-sca...
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How to implement a ConfigurationSection with a ConfigurationElementCollection

...lection Services { get { return (ServiceCollection)base["Services"]; } } } And that should do the trick. To consume it you can use: ServiceConfigurationSection serviceConfigSection = ConfigurationManager.GetSection("ServicesSection") as ServiceConfigurationSect...
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detach all packages while working in R

... character.only=TRUE, unload=TRUE, force=TRUE)) One can attempt to unload base packages via $basePkgs and also attempt using unloadNamespace(loadedNamespaces()). However these typically are fraught with errors and could break basic functionality such as causing sessionInfo() to return only errors. ...
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How do I work around JavaScript's parseInt octal behavior?

...is is a common Javascript gotcha with a simple solution: Just specify the base, or 'radix', like so: parseInt('08',10); // 8 You could also use Number: Number('08'); // 8 share | improve this ...
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Json.net serialize/deserialize derived types?

... JsonSerializerSettings. See: how to deserialize JSON into IEnumerable<BaseType> with Newtonsoft JSON.NET Be careful, though. Using anything other than TypeNameHandling = TypeNameHandling.None could open yourself up to a security vulnerability. ...
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Create a GUID in Java

...en an (unverified !!) claim that someone did run into problems with random-based UUIDs not being unique. – Stephen C Sep 14 '17 at 1:29 add a comment  |  ...
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Cannot hide status bar in iOS7

... in your apps plist file add a row call it "View controller-based status bar appearance" and set it to NO Note that this simply does not work, if you are using UIImagePickerController in the app. from http://www.openfl.org/developer/forums/general-discussion/iphone-5ios-7-cant-hide-...
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Fast permutation -> number -> permutation mapping algorithms

... pattern in the weight is of course that the weight is w = b^k, with b the base of the number and k the index of the digit. (I will always count digits from the right and starting at index 0 for the rightmost digit. Likewise when I talk about the 'first' digit I mean the rightmost.) The reason why ...
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Convert hex string to int in Python

... Without the 0x prefix, you need to specify the base explicitly, otherwise there's no way to tell: x = int("deadbeef", 16) With the 0x prefix, Python can distinguish hex and decimal automatically. >>> print int("0xdeadbeef", 0) 3735928559 >>> print in...
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Why do people hate SQL cursors so much? [closed]

...n is the obvious internal cursor implementation. Using higher-level "set-based operators" bundles the cursor results into a single result set, meaning less API back-and-forth. Cursors predate modern languages that provide first-class collections. Old C, COBOL, Fortran, etc., had to process rows ...