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What is the difference between i++ and ++i?

... The typical answer to this question, unfortunately posted here already, is that one does the increment "before" remaining operations and the other does the increment "after" remaining operations. Though that intuitively gets the idea across, that statement is on the face of it completely w...
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Is Java Regex Thread Safe?

...Pattern) class are immutable and are safe for use by multiple concurrent threads. Instances of the Matcher class are not safe for such use. If you are looking at performance centric code, attempt to reset the Matcher instance using the reset() method, instead of creating new instances. This would ...
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Is there a pattern for initializing objects created via a DI container

...ces of IMyIntf like this one: public class MyIntf : IMyIntf { private readonly string runTimeParam; public MyIntf(string runTimeParam) { if(runTimeParam == null) { throw new ArgumentNullException("runTimeParam"); } this.runTimeParam = runTim...
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How would I run an async Task method synchronously?

...e bool done; public Exception InnerException { get; set; } readonly AutoResetEvent workItemsWaiting = new AutoResetEvent(false); readonly Queue<Tuple<SendOrPostCallback, object>> items = new Queue<Tuple<SendOrPostCallback, object>>(); ...
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How can I assign an ID to a view programmatically?

...be positive, but is otherwise arbitrary- it can be whatever you want (keep reading if this is frightful.) For example, if creating and numbering several views representing items, you could use their item number. Uniqueness of ids XML-assigned ids will be unique. Code-assigned ids do not have to ...
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How to split text without spaces into list of words?

... and cost = -math.log(probability). words = open("words-by-frequency.txt").read().split() wordcost = dict((k, log((i+1)*log(len(words)))) for i,k in enumerate(words)) maxword = max(len(x) for x in words) def infer_spaces(s): """Uses dynamic programming to infer the location of spaces in a strin...
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Create request with POST, which response codes 200 or 201 and content

...ly be used by a robot, the it makes sense to have the response be computer readable: HTTP/1.1 201 Created Date: Sat, 02 Apr 2016 12:22:40 GMT Location: http://stackoverflow.com/a/36373586/12597 Content-Type: application/xml <createdResources> <questionID>1860645</questionID> ...
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When would I need a SecureString in .NET?

... doing otherwise: you presumably have the secret value as a plain string already, so what's the point? SecureStrings are the first step in solving a Chicken-and-Egg problem, so even though most current scenarios require converting them back into regular strings to make any use of them at all, thei...
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What is the logic behind the “using” keyword in C++?

...r<T> > Vec; That notation has the advantage of using a keyword already known to introduce a type alias. However, it also displays several disavantages among which the confusion of using a keyword known to introduce an alias for a type-name in a context where the alias does not designate a ...
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Best way to allow plugins for a PHP application

... And let's say you don't want to use extends inheritance because you may already be inheriting in your class from some other class. Wouldn't it be great to have a generic way to make any class pluggable without much effort? Here's how: <?php //////////////////// // PART 1 //////////////////// ...