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Explain the use of a bit vector for determining if all characters are unique
...r 'a' and 25 for 'z'
renamed 'val' as 'characterIndex' to be more descriptive
*/
int characterIndex = str.charAt(i) - 'a'; //char 'a' would get 0 and char 'z' would get 26
/*
created a new variable to make things clearer 'singleBitOnPosition'
It is...
What exactly is Hot Module Replacement in Webpack?
...
Although the accepted answer explains everything correctly, the following description should help to more quickly understand what HMR is.
Essentially (in a nutshell!) - it aids development by reducing the number of page refreshes by replacing the modules with changes at runtime.
While searching abo...
How do I set up a basic Ruby project?
... if I wasn't able to find any class in the standard library fits the error description. Nest your error class under the class or module that raises it:
class Parser::Error < RuntimeError; end
begin
Parser.new(:invalid).parse!
rescue Parser::Error => e
puts e.message
end
Unit tests go e...
Best practices for using Markers in SLF4J/Logback
...s entirely arbitrary. Choose something that's aesthetically pleasing, self-descriptive (most important), and specific enough to be unlikely to conflict with later additions. Hyphens vs. underscores is exceedingly nitpicky and alarmingly beside the point, but note it may be less confusing for ESL emp...
How to test my servlet using JUnit
...You may want to look at cactus.
http://jakarta.apache.org/cactus/
Project Description
Cactus is a simple test framework for unit testing server-side java code (Servlets, EJBs, Tag Libs, Filters, ...).
The intent of Cactus is to lower the cost of writing tests for server-side code. It uses JUnit and...
How do I change Bootstrap 3 column order on mobile layout?
...;/div>
<div id=desc class="col-xs-12 col-sm-6 pull-right">Product description</div>
CSS:
#hack { height: 50px; }
@media (min-width: @screen-sm) {
#desc { margin-top: -50px; }
}
So, the generalized solution here is to add hack tags that can disappear on mobile. On tablet+ the ha...
Difference between and
... Great answer! Nothing like a short clear example with concise description. Understood the whole thing in one read.
– Jigish
Jun 18 '13 at 15:35
21
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Differences between hard real-time, soft real-time, and firm real-time?
...t: Yes, but the system service is degraded
As from the the wikipedia description the usefulness of a result degrades after its deadline. That means, getting a response from the system out of the deadline is still useful for the end user but its usefulness degrade after reaching the deadline. A...
Can I control the location of .NET user settings to avoid losing settings on application upgrade?
...;version> is the AssemblyInfo's AssemblyVersionAttribute setting.
Full description is here http://msdn.microsoft.com/en-us/library/ms379611.aspx
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Why use JUnit for testing?
... original author possessed when they implemented the class. They provide a description of how that class behaves when used by a client.
You are correct to question the usefulness of doing this because it is possible to write unit tests that are useless, do not cover all of the code in question, bec...