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Is it wrong to use Deprecated methods or classes in Java?

I am using eclipse to develop a web application. Just today I have updated my struts version by changing the JAR file. I am getting warnings at some places that methods are deprecated, but the code is working fine. ...
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Calculate number of hours between 2 dates in PHP

How do I calculate the difference between two dates in hours? 16 Answers 16 ...
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Generating random whole numbers in JavaScript in a specific range?

How can I generate random whole numbers between two specified variables in JavaScript, e.g. x = 4 and y = 8 would output any of 4, 5, 6, 7, 8 ? ...
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Decorators with parameters?

I have a problem with the transfer of variable 'insurance_mode' by the decorator. I would do it by the following decorator statement: ...
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How does Facebook Sharer select Images and other metadata when sharing my URL?

...r, Facebook will offer the user the option of using 1 of a few images pulled from the source as a preview for their link. How are these images selected, and how can I ensure that any particular image on my page is always included in this list? ...
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How to concatenate text from multiple rows into a single text string in SQL server?

Consider a database table holding names, with three rows: 47 Answers 47 ...
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How do I declare an array of weak references in Swift?

I'd like to store an array of weak references in Swift. The array itself should not be a weak reference - its elements should be. I think Cocoa NSPointerArray offers a non-typesafe version of this. ...
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How can I use NSError in my iPhone App?

I am working on catching errors in my app, and I am looking into using NSError . I am slightly confused about how to use it, and how to populate it. ...
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Simplest way to profile a PHP script

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How can I count text lines inside an DOM element? Can I?

I'm wondering if there's a way to count lines inside a div for example. Say we have a div like so: 16 Answers ...