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Abstraction VS Information Hiding VS Encapsulation

...rady Booch says (in Object Oriented Analysis and Design, page 49, second edition): Abstraction and encapsulation are complementary concepts: abstraction focuses on the observable behavior of an object... encapsulation focuses upon the implementation that gives rise to this behavior... enca...
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Looking for jQuery find(..) method that includes the current node

The jQuery find(..) traversal method doesn't include the current node - it starts with the children of the current node. What is the best way to call a find operation that includes the current node in its matching algorithm? Looking through the docs nothing immediately jumps out at me. ...
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How to hide action bar before activity is created, and then show it again?

...ed to implement splash screen in my honeycomb app. I use this code in activity's onCreate to show splash: 27 Answers ...
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Shell command to sum integers, one per line?

... Bit of awk should do it? awk '{s+=$1} END {print s}' mydatafile Note: some versions of awk have some odd behaviours if you are going to be adding anything exceeding 2^31 (2147483647). See comments for more background. One ...
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How to deploy correctly when using Composer's develop / production switch?

...oject is started: composer.phar install --dev, json and lock files are commited to VCS. Other developers start working on the project: checkout of VCS and composer.phar install --dev. A developer adds dependancies: composer.phar require <package>, add --dev if you want the package in the requi...
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What are DDL and DML?

...?, the original is as follows: DDL DDL is short name of Data Definition Language, which deals with database schemas and descriptions, of how the data should reside in the database. CREATE – to create database and its objects like (table, index, views, store procedure, function...
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What is the purpose of std::make_pair vs the constructor of std::pair?

... The difference is that with std::pair you need to specify the types of both elements, whereas std::make_pair will create a pair with the type of the elements that are passed to it, without you needing to tell it. That's what I could gather from vari...
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Django CharField vs TextField

... It's a difference between RDBMS's varchar (or similar) — those are usually specified with a maximum length, and might be more efficient in terms of performance or storage — and text (or similar) types — those are usuall...
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Using the last-child selector

My goal is to apply the CSS on the last li , but it doesn't do that. 11 Answers 11 ...
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Unable to create Android Virtual Device

...to be able to run a virtual device) In your case only ARM system image exsits (Android 4.2). If you were running an older version, Intel has provided System Images (Intel x86 ATOM). You can check on the internet to see the comparison in performance between both. In my case (see image below) I have...