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How do I create an immutable Class?
...rayList.ReadOnly or similar - you can combine this with the previous point and store a read-only copy to be returned when callers access it), return an enumerator, or use some other method/property that allows read-only access into the collection
keep in mind that you still may have the appearance o...
SQL Server Management Studio won't let me add an index to a table
...older in the table the "New Index" menu item is grayed out. I don't understand why. I've deleted all data in the table just in case, and refreshed and restarted SSMS, but no luck. I'm using SQL Server 2012 Business Intelligence SP1 CTP.
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What is the difference between a weak reference and an unowned reference?
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Both weak and unowned references do not create a strong hold on the referred object (a.k.a. they don't increase the retain count in order to prevent ARC from deallocating the referred object).
But why two keywords? This distinction has...
Eclipse debugger always blocks on ThreadPoolExecutor without any obvious exception, why?
... projects on Eclipse, it's a J2EE application, made with Spring, Hibernate and so on. I'm using Tomcat 7 for this (no particular reason, I don't exploit any new feature, I just wanted to try that). Every time I debug my application, it happens that Eclipse debugger pops out like it has reached a bre...
How do I force Sublime Text to indent two spaces per tab?
...this configuration to Ruby files, first open up a Ruby file in the editor, and then go to Preferences -> Settings - Syntax Specific. This should open a settings window named Ruby.sublime-settings
Save these settings:
{
"tab_size": 2,
"translate_tabs_to_spaces": true,
"detect_indentation":...
What is reflection and why is it useful?
What is reflection, and why is it useful?
21 Answers
21
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Why is Java's AbstractList's removeRange() method protected?
Does anyone have any idea, why removeRange method in AbstractList (and also in ArrayList ) is protected ? It looks like a quite well-defined and useful operation, but still, to use it, we're forced to subclass the List implementation.
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What are transparent comparators?
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What problem does this solve,
See Dietmar's answer and remyabel's answer.
and does this change how standard containers work?
No, not by default.
The new member function template overloads of find etc. allow you to use a type that is comparable with the container's key,...
What is the use of join() in Python threading?
I was studying the python threading and came across join() .
10 Answers
10
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How can I find WPF controls by name or type?
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I combined the template format used by John Myczek and Tri Q's algorithm above to create a findChild Algorithm that can be used on any parent. Keep in mind that recursively searching a tree downwards could be a lengthy process. I've only spot-checked this on a WPF application...