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Static Classes In Java
...de as it makes no sense to instantiate a static class
Make all the members and functions of the class static - Since the class cannot be instantiated no instance methods can be called or instance fields accessed
Note that the compiler will not prevent you from declaring an instance (non-static) mem...
SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?
...n you try to delete on table BookCourses only the table itself is affected and not on the Courses
follow-up question: why do you have CourseID on table Category?
Maybe you should restructure your schema into this,
CREATE TABLE Categories
(
Code CHAR(4) NOT NULL PRIMARY KEY,
CategoryName VARC...
How do I avoid capturing self in blocks when implementing an API?
I have a working app and I'm working on converting it to ARC in Xcode 4.2. One of the pre-check warnings involves capturing self strongly in a block leading to a retain cycle. I've made a simple code sample to illustrate the issue. I believe I understand what this means but I'm not sure the "corre...
Override Java System.currentTimeMillis for testing time sensitive code
...commend that instead of messing with the system clock, you bite the bullet and refactor that legacy code to use a replaceable clock. Ideally that should be done with dependency injection, but even if you used a replaceable singleton you would gain testability.
This could almost be automated with se...
Elegant method to generate array of random dates within two dates
I have a datepicker where I show two months and I want to randomly choose 3 dates in each visible month
4 Answers
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Meaning of …interface{} (dot dot dot interface)
...ype prefixed with .... A function with such a parameter is called variadic and may be invoked with zero or more arguments for that parameter.
A parameter:
a ...interface{}
Is, for the function equivalent to:
a []interface{}
The difference is how you pass the arguments to such a function. It is do...
Sublime Text 2 - View whitespace characters
...w can Sublime Text show non printable characters (I'm interested in SPACEs and TABs)?
10 Answers
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getString Outside of a Context or Activity
...he R.string pretty awesome for keeping hardcoded strings out of my code, and I'd like to keep using it in a utility class that works with models in my application to generate output. For instance, in this case I am generating an email from a model outside of the activity.
...
How to set MSDN to be always in English
...
I use Redirector for Chrome and have this: http([s]?):\/\/(docs|msdn)\.microsoft\.com\/es-es\/(.*) to http$1://$2.microsoft.com/en-us/$3
– Jcl
Jan 21 '18 at 20:00
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Using Linq to group a list of objects into a new grouped list of list of objects
... it's work fine but i have one question suppose in the group up to 8 value and i want to just need in every group with just 6 take so how can do that please let me know.
– coderwill
Jun 28 '17 at 11:42
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