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Java packages com and org

...ode Conventions: The prefix of a unique package name is always written in all-lowercase ASCII letters and should be one of the top-level domain names, currently com, edu, gov, mil, net, org, or one of the English two-letter codes identifying countries as specified in ISO Standard 3166, 1981. Subseq...
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What is the meaning of id?

... but those objects must respond to retain and release. The compiler is totally happy for you to implicitly cast any object to id, and for you to cast id to any object. This is unlike any other implicit casting in Objective-C, and is the basis for most container types in Cocoa. ...
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How to make a whole 'div' clickable in html and css without JavaScript? [duplicate]

...a element is now transparent; that is, an instance of the a element is now allowed to also contain flow content". dev.w3.org/html5/markup/a.html#a-changes – Damien Jan 3 '13 at 9:25 ...
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Do sessions really violate RESTfulness?

Is using sessions in a RESTful API really violating RESTfulness? I have seen many opinions going either direction, but I'm not convinced that sessions are RESTless . From my point of view: ...
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Git merge errors

I have a git branch called 9-sign-in-out with perfectly working code, and I want to turn it into the master. I'm currently on the master branch. ...
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How can I use grep to show just filenames on Linux?

... Nice, I personally like using this with other flags grep -nrl "some text" . when looking for text in a set of subfolders recursively – openwonk Jun 25 '19 at 6:33 ...
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Return value in a Bash function

...t should provide data cannot also echo other stuff to stdout, because the caller using $() will receive that too and get confused or have to parse the output. Global variables are not great because it's just a matter of time before you use the same global var in two places that happen to be nested a...
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Redis is single-threaded, then how does it do concurrent I/O?

...n how you define concurrency. In server-side software, concurrency and parallelism are often considered as different concepts. In a server, supporting concurrent I/Os means the server is able to serve several clients by executing several flows corresponding to those clients with only one computatio...
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Ajax using https on an http page

...d https protocol; it doesn't affect the content. My site uses jQuery ajax calls, which fills some areas on the page, too. ...
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How do I force “git pull” to overwrite local files?

... content), these files will not be affected. First, run a fetch to update all origin/<branch> refs to latest: git fetch --all Then, you have two options: git reset --hard origin/master OR If you are on some other branch: git reset --hard origin/<branch_name> Explanation: git fetch do...