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@RequestBody and @ResponseBody annotations in Spring

Can someone explain the @RequestBody and @ResponseBody annotations in Spring 3? What are they for? Any examples would be great. ...
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Clojure: cons (seq) vs. conj (list)

I know that cons returns a seq and conj returns a collection. I also know that conj "adds" the item to the optimal end of the collection, and cons always "adds" the item to the front. This example illustrates both of these points: ...
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Why does C++11 not support designated initializer lists as C99? [closed]

... constructor. This is the sort of abstraction C++ promotes. On the other hand the designated initializers feature is more about exposing and making members easy to access directly in client code. This leads to things like having a person of age 18 (years?) but with height and weight of zero. In ...
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“rm -rf” equivalent for Windows?

I need a way to recursively delete a folder and its children. 21 Answers 21 ...
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How do I Geocode 20 addresses without receiving an OVER_QUERY_LIMIT response?

... No, there is not really any other way : if you have many locations and want to display them on a map, the best solution is to : fetch the latitude+longitude, using the geocoder, when a location is created store those in your database, alongside the address and use those stored latitude+lon...
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When is it better to use an NSSet over an NSArray?

... In your example, you are adding primitives to an array and a set. Neither is possible because they can only contain objects. – FreeAsInBeer Jun 12 '12 at 13:28 ...
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Could not change executable permissions on the application

Just updated to iOS 6 sdk and latest Xcode and get this when trying to build to my 3gs. I 've added armv6 under valid architectures? ...
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How do I pass an extra parameter to the callback function in Javascript .filter() method?

... Make startsWith accept the word to compare against and return a function which will then be used as filter/callback function: function startsWith(wordToCompare) { return function(element) { return element.indexOf(wordToCompare) === 0; } } addressBook.filter(...
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When would anyone use a union? Is it a remnant from the C-only days?

...pace to work with, or when you're developing an API (or something similar) and you want to force the end user to have only one instance of several objects/types at one time. Are these two guesses even close to right? ...
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How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]

I have a = [1,2,3,4] and I want d = {1:0, 2:0, 3:0, 4:0} 5 Answers 5 ...