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What does “connection reset by peer” mean?

What is the meaning of the "connection reset by peer" error on a TCP connection? Is it a fatal error or just a notification or related to the network failure? ...
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CATALINA_OPTS vs JAVA_OPTS - What is the difference?

... "run" command is executed So why are there two different variables? And what's the difference? Firstly, anything specified in EITHER variable is passed, identically, to the command that starts up Tomcat - the "start" or "run" command - but only values set in JAVA_OPTS are passed to the "stop" co...
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What is the Python equivalent of Matlab's tic and toc functions?

What is the Python equivalent of Matlab's tic and toc functions ? 12 Answers 12 ...
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How can I get a count of the total number of digits in a number?

... new? Hardly. I was egregiously allocating strings back in 2010. What a trend setter. Lol. You are right though. This is dirty! – Andiih Dec 10 '16 at 12:42 3 ...
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What is the difference between a HashMap and a TreeMap? [duplicate]

.... Therefore, when iterating over the keys of a HashMap, you can't be sure what order they will be in. HashMap will be more efficient in general, so use it whenever you don't care about the order of the keys. share ...
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Are there any smart cases of runtime code modification?

...es sense. In the end any classification is debatable. It all comes down to what exactly you include into the definition of program (or code). – Mackie Messer Apr 5 '11 at 0:25 ...
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What's the difference between RouteLink and ActionLink in ASP.NET MVC?

...it easy to generate ActionLinks fast, and will give you basic control over what is rendered. If you don't have too many routes, or don't need to give too much or too specific information, this will do the work just fine. The Html.RouteLink() method takes slightly different arguments, and thus gives...
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Overloaded method selection based on the parameter's real type

... a constructor, but which one? The program's output depends on the answer. What does the program print, or is it even legal? public class Confusing { private Confusing(Object o) { System.out.println("Object"); } private Confusing(double[] dArray) { System.out.println("...
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Callback functions in C++

...lback" logic in C++, but as of today not the most favourable one I think. What are callbacks(?) and why to use them(!) A callback is a callable (see further down) accepted by a class or function, used to customize the current logic depending on that callback. One reason to use callbacks is to wri...
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Is there a use-case for singletons with database access in PHP?

... You may end up with a second monitor, a second database, a second server--whatever. When this happens, if you have used a static class you're in for a much worse refactor than if you had used a singleton. A singleton is an iffy pattern in itself, but it converts fairly easily to an intelligent fa...