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Why is Java's AbstractList's removeRange() method protected?

...Range is not part of the List public API. The reason is described in Item 40 of Effective Java 2nd ed, and I quote it here: There are three techniques for shortening overly long parameter lists. One is to break the method up into multiple methods, each of which requires only a subset of the para...
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How to use WPF Background Worker

... answered Mar 30 '11 at 8:09 Andrew OrsichAndrew Orsich 47.9k1414 gold badges129129 silver badges130130 bronze badges ...
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ExecuteReader requires an open and available Connection. The connection's current state is Connectin

...ould be smart to encapsulate ADO.NET functionality into a DB-Class(me too 10 years ago). Mostly they decide to use static/shared objects since it seems to be faster than to create a new object for any action. That is neither a good idea in terms of peformance nor in terms of fail-safety. Don't poa...
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How to index into a dictionary?

... 110 Dictionaries are unordered in Python versions up to and including Python 3.6. If you do not car...
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Objective-C: Extract filename from path string

... 600 Taken from the NSString reference, you can use : NSString *theFileName = [[string lastPathComp...
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Emacs: print key binding for a command or list all key bindings

... | edited May 17 '10 at 23:43 answered May 16 '10 at 23:39 ...
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Getting number of days in a month

... 302 You want DateTime.DaysInMonth: int days = DateTime.DaysInMonth(year, month); Obviously it va...
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What are some compelling use cases for dependent method types?

...tside ResourceManager def testHash(r : Resource) = assert(r.hash == "9e47088d") def testDuplicates(r : Resource) = assert(r.duplicates(r)) } trait FileManager extends ResourceManager { type Resource <: File trait File extends BasicResource { def local : Boolean } override def c...
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xUnit : Assert two List are equal?

... edited May 29 '18 at 15:20 answered Jan 7 '09 at 9:33 Kons...
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iOS: Use a boolean in NSUserDefaults

...| edited Apr 26 '19 at 13:06 Arshad Shaik 54255 silver badges1414 bronze badges answered Oct 1 '10 at 16...