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Places where JavaBeans are used?

What is a JavaBean and why do I need it? Since I can create all apps with the class and interface structure? Why do I need beans? And can you give me some examples where beans are essential instead of classes and interfaces? ...
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Paperclip::Errors::MissingRequiredValidatorError with Rails 4

I'm getting this error when I try to upload using paperclip with my rails blogging app. Not sure what it is referring to when it says "MissingRequiredValidatorError" I thought that by updating post_params and giving it :image it would be fine, as both create and update use post_params ...
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RegEx backreferences in IntelliJ

I want to use IntelliJ's find-and-replace feature to perform the following transformation: 4 Answers ...
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Can I keep Nuget on the jQuery 1.9.x/1.x path (instead of upgrading to 2.x)?

Like most people, I'm using the jQuery Nuget package to keep up to date. 4 Answers 4...
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How to test if a string is basically an integer in quotes using Ruby

I need a function, is_an_integer , where 20 Answers 20 ...
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intellij - spring is not being recognized (Unmapped Spring configuration)

I am using IntelliJ IDEA and all plugins for Spring are activated, but when I load my Maven project I have the following error: ...
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The Ruby %r{ } expression

In a model there is a field 5 Answers 5 ...
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What does the 'standalone' directive mean in XML?

What does the ' standalone ' directive mean in an XML document? 5 Answers 5 ...
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$.ajax - dataType

What is the difference between 4 Answers 4 ...
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C++, Free-Store vs Heap

Dynamic allocations with new/delete are said to take place on the free-store , while malloc/free operations use the heap . I'd like to know if there is an actual difference, in practice. Do compilers make a distinction between the two terms? ( Free store and Heap , not new/malloc ) ...