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What is N-Tier architecture?
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It depends on how you count "tiers" (logical, physical, etc), but you can easily have more than 3 process involved to write an app. UI, UI platform (like Eclipse RCP), Web Services, BLL, DAL, Database, Authentication Services, Reporting Services, Analytical Services...
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In Maven 2, how do I know from which dependency comes a transitive dependency?
...re is a graphical version of dependency tree where you can filter by scope etc.
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how to make svn diff show only non-whitespace line changes between two revisions
...cenario and that has to be ignored with:
svn diff -x --ignore-eol-style [etc...]
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What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
...ass.newInstance() is strongly discouraged. It's recommended to use Class.getConstructor(), followed by Constructor.newInstance() in turn. It avoids masking possible exceptions.
– L S
Mar 27 '13 at 14:57
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How is location accuracy measured in Android?
...here is no GPS signal in buildings and in areas with many big building and etc. But Android makes it a much easier. When you request a location, you just have to specify what accuracy do you need.
If you specify that you want an accuracy for an example *100 meters*, Android will try to get the loca...
Rails extending ActiveRecord::Base
...grouping. For example, a domain grouping is like 'Commentable', 'Taggable' etc. A technical based grouping will be like 'FinderMethods', 'ValidationMethods'.
Here is a link to a post that I found very useful for understanding concerns in Models.
Hope the writeup helps :)
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Difference between make and build in Android Studio
...ified scope are compiled. The scope in this case may be a file, a package, etc.
Make Project All the source files in the entire project that have been modified since the last compilation are compiled. Dependent source files, if appropriate, are also compiled. Additionally, the tasks tied to the...
How do you switch pages in Xamarin.Forms?
... we should agree that WelcomeView(Page) should have a WelcomeViewModel and etc. Here is a code example of a mapper:
public class TypeMapperService
{
public Type MapViewModelToView(Type viewModelType)
{
var viewName = viewModelType.FullName.Replace("Model", string.Empty);
var...
What does threadsafe mean?
...eed to perform common actions - disk i/o, outputting results to the screen etc. - these parts of the code will need to be written in such a way that they can handle being called from multiple threads, often at the same time. This will involve things like:
Working on copies of data
Adding locks aro...
How to detect online/offline event cross-browser?
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The library actually works by fetching local favicon repeatedly under the hood. In my opinion, the library is too "big" and has too many features; the main trick is just fetching favicon repeatedly.
– Karel Bílek
Oct...