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What is the concept of erasure in generics in Java?
...serted, the new foreach-style for loops are expanded to regular for loops, etc. It is nice to see the little things that are happening automagically.
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Is the 'override' keyword just a check for a overridden virtual method?
...es, only irregularities like missing const or writing char instead of int, etc.
– legends2k
Oct 20 '13 at 13:07
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Which is more efficient: Multiple MySQL tables or one large table?
...able (i.e. a denormalized table) that would require no joins, calculations etc that reports could point to. These where then used in conjunction with a SQL server agent to run the job at certain intervals (i.e. a weekly view of some stats would run once a week and so on).
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What exactly is Type Coercion in Javascript?
... = it is an assignment operator - which assigns values such as var a = 3;, etc
(below operators are for comparison)
In this case == Javascript converts/coerces the datatype to another and then compares it.
In this case === Javascript doesn't convert/coerces the datatype
In order to avoid bugs ...
What is Java String interning?
...exists even without interning (since GC is non-deterministic to start with etc), but it makes it somewhat worse. It's always a good idea to use char[] instead of String for sensitive text and zero it out as soon as it's no longer needed.
– chris
Apr 26 '17 at 1...
C++11 range based loop: get item by value or reference to const
...e non-trivial copy semantics (e.g. std::string, some complex custom class, etc.) then I'd suggest using const auto& to avoid deep-copies:
for (const auto & x : vec)
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How can I style an Android Switch?
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Great time saver. 9-patches, state list drawables, etc all in one click!
– Steve
Nov 15 '13 at 23:23
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Transfer-Encoding: gzip vs. Content-Encoding: gzip
... would not be allowed to change, in addition to other ramifications (ETags etc). According to reality however, TE is not normally used for compression, and many servers/clients don't even support it out of the box, whereas CE is used more or less the way TE was intented to be used: as a transport la...
Should I use pt or px?
...raditionally used in print media (anything that is to be printed on paper, etc.). One point is equal to 1/72 of an inch. Points are much like pixels, in that they are fixed-size units and cannot scale in size.
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LINQ Aggregate algorithm explained
...operates on the previous result and the third element and carries forward. etc.
Example 1. Summing numbers
var nums = new[]{1,2,3,4};
var sum = nums.Aggregate( (a,b) => a + b);
Console.WriteLine(sum); // output: 10 (1+2+3+4)
This adds 1 and 2 to make 3. Then adds 3 (result of previous) and 3 ...