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How would you count occurrences of a string (actually a char) within a string?
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If you're using .NET 3.5 you can do this in a one-liner with LINQ:
int count = source.Count(f => f == '/');
If you don't want to use LINQ you can do it with:
int count = source.Split('/').Length - 1;
You might be surprised to learn that your original technique...
What is the difference between iterator and iterable and how to use them?
... am new in Java and I'm really confused with iterator and iterable. Can anyone explain to me and give some examples?
13 Ans...
What Automatic Resource Management alternatives exist for Scala?
...anagement) on the web for Scala. It seems to be a rite-of-passage to write one, though most look pretty much like one another. I did see a pretty cool example using continuations, though.
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What are the main performance differences between varchar and nvarchar SQL Server data types?
...o go back and modify throughout your application.
The cost of migrating one application from varchar to nvarchar will be much more than the little bit of extra disk space you'll use in most applications.
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Determine if running on a rooted device
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Here is a class that will check for Root one of three ways.
/** @author Kevin Kowalewski */
public class RootUtil {
public static boolean isDeviceRooted() {
return checkRootMethod1() || checkRootMethod2() || checkRootMethod3();
}
private stati...
support FragmentPagerAdapter holds reference to old fragments
...y loading of its pages; by default it only loads the current page, and the one to the left and right.
If you put your app into the background, the fragments that have been added to the fragment manager are saved automatically. Even if your app is killed, this information is restored when you relaun...
When should I use Memcache instead of Memcached?
...emcache and memcached . What is the difference and how do you know which one to use? Is one outdated? It seems that memcached offers more methods so I would assume that means it has had the most development - but it also seems to require external C/C++ libraries so I'm not sure if I can install ...
AutoMapper vs ValueInjecter [closed]
... the Id suffix and it's type is inherited from Entity, stuff like that
so one obvious difference, ValueInjecter is used even in windows forms with flattening and unflattening, that's how flexible it is
(mapping from object to form controls and back)
Automapper, not usable in windows forms, no unf...
MSysGit vs. Git for Windows
...n MSysGit and Git for Windows . How are they different? Why would I choose one over the other?
9 Answers
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Forms authentication timeout vs sessionState timeout
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One clarification: The forms authentication timeout sets the expiration time for the Ticket not necessarily for the cookie where the ticket may be stored. The cookie may have no expiration time at all (confusingly called a s...