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Understanding Canvas and Surface concepts

I'm struggling to understand the process of drawing to SurfaceView and therefore the whole Surface / Canvas / Bitmap system, which is used in Android. ...
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StringBuilder vs String concatenation in toString() in Java

... Version 1 is preferable because it is shorter and the compiler will in fact turn it into version 2 - no performance difference whatsoever. More importantly given we have only 3 properties it might not make a difference, but at what point do you switch from conc...
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How do you add swap to an EC2 instance?

I'm currently running an ec2 micro instance and i've been finding that the instance occasionally runs out of memory. 10 Ans...
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NPM/Bower/Composer - differences?

Can someone explain to me the difference between NPM , Bower and Composer . 1 Answer ...
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Accessing nested JavaScript objects and arays by string path

...your property name contains '[]' in itself. Regex will replace it with '.' and it doesn't work as expected – Capaj Jul 30 '15 at 21:57 ...
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Catching java.lang.OutOfMemoryError?

... I agree and disagree with most the responses here. There are a number of scenarios where you may wish to catch an OutOfMemoryError and in my experience (on Windows and Solaris JVMs), only very infrequently is OutOfMemoryError the de...
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Is it possible dynamically to add String to String.xml in Android?

... Formatting and Styling Yes, see the following from String Resources: Formatting and Styling If you need to format your strings using String.format(String, Object...), then you can do so by putting your format arguments in the strin...
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Array.Copy vs Buffer.BlockCopy

Array.Copy and Buffer.BlockCopy both do the same thing, but BlockCopy is aimed at fast byte-level primitive array copying, whereas Copy is the general-purpose implementation. My question is - under what circumstances should you use BlockCopy ? Should you use it at any time when you are copyi...
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How to debug Ruby scripts [closed]

I copied the following Ruby code from the Internet and made a few changes but it doesn't work. 17 Answers ...
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What does = +_ mean in JavaScript

...page on Arithmetic Operators: The unary plus operator precedes its operand and evaluates to its operand but attempts to converts it into a number, if it isn't already. [...] It can convert string representations of integers and floats, as well as the non-string values true, false, and null...