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Why not abstract fields?

...Child constructor would be trying to use a non-existent noargs constructor and that is a compilation error (not a warning). – Stephen C Feb 6 '10 at 0:15 ...
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What is the behavior difference between return-path, reply-to and from?

... delivery {C}QUIT {S}221 Service closing transmission channel Where {C} and {S} represent Client and Server commands, respectively. The recipient's mail would look like: Return-Path: coolstuff-you=yourcompany.com@mymailinglist.com From: <coolstuff@mymailinglist.com> To: <you@yourcompa...
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How to extract a git subdirectory and make a submodule out of it?

I started a project some months ago and stored everything within a main directory. In my main directory "Project" there are several subdirectories containing different things: Project/paper contains a document written in LaTeX Project/sourcecode/RailsApp contains my rails app. ...
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Is there a Python caching library?

...nything so far. I need a simple dict -like interface where I can set keys and their expiration and get them back cached. Sort of something like: ...
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Accessing last x characters of a string in Bash

...of string: ${string: -3} or ${string:(-3)} (mind the space between : and -3 in the first form). Please refer to the Shell Parameter Expansion in the reference manual: ${parameter:offset} ${parameter:offset:length} Expands to up to length characters of parameter starting at the character spe...
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what is the difference between a portlet and a servlet?

I am asked to work on portlets and portals. 5 Answers 5 ...
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Getting the class name from a static method in Java

...thanks to @James Van Huis): MyClass.class.getSimpleName(); // class name and no more share | improve this answer | follow | ...
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Good introduction to the .NET Reactive Framework [closed]

Aside from the Microsoft documentation, is there a good introduction and tutorial to the Microsoft Reactive (Rx) framework? ...
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Can two applications listen to the same port?

Can two applications on the same machine bind to the same port and IP address? Taking it a step further, can one app listen to requests coming from a certain IP and the other to another remote IP? I know I can have one application that starts off two threads (or forks) to have similar behavior, but...
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Difference between add(), replace(), and addToBackStack()

... This means that the transaction will be remembered after it is committed, and will reverse its operation when later popped off the stack. 2) fragmentTransaction.replace(int containerViewId, Fragment fragment, String tag) Description - Replace an existing fragment that was added to a container. Th...