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Create a custom event in Java

...else in the package interface ThrowListener { public void Catch(); } /*_____________________________________________________________*/class Thrower { //list of catchers & corresponding function to add/remove them in the list List<ThrowListener> listeners = new ArrayList<ThrowLis...
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RSpec: What is the difference between a feature and a request spec?

... The conceptual difference is that you're usually testing a user story, and all interaction should be driven via the user interface. That's where Capybara comes in. A request spec is still testing the behavior of your application and doesn't have the expectation of re...
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How to list the files inside a JAR file?

I have this code which reads all the files from a directory. 16 Answers 16 ...
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How do I execute a string containing Python code in Python?

...;>> x 4 However, the first step should be to ask yourself if you really need to. Executing code should generally be the position of last resort: It's slow, ugly and dangerous if it can contain user-entered code. You should always look at alternatives first, such as higher order functions, ...
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PHP: How to send HTTP response code?

...-Code: 404', true, 404); I recommend the 2nd one. The first does work on all browsers I have tested, but some minor browsers or web crawlers may have a problem with a header line that only contains a colon. The header field name in the 2nd. variant is of course not standardized in any way and coul...
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How to identify if the DLL is Debug or Release build (in .NET) [duplicate]

...s to check the compiled assemblies itself. There is this very useful tool called '.NET Assembly Information' found here by Rotem Bloom. After you install this, it associates itself with .dll files to open with itself. After installing you can just double-click on the Assembly to open and it will giv...
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How can I fix the Microsoft Visual Studio error: “package did not load correctly”?

I installed Visual Studio 2012 and DevExpress 13.1. As Visual Studio started, it generated an error shown by this attached image, ...
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Cython: “fatal error: numpy/arrayobject.h: No such file or directory”

...... you don't need to even open a command line if you use IPython ... it's all very convenient. In your case, try running these commands in IPython or in a normal Python script: import numpy import pyximport pyximport.install(setup_args={"script_args":["--compiler=mingw32"], ...
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How to call a stored procedure from Java and JPA

I am writing a simple web application to call a stored procedure and retrieve some data. Its a very simple application, which interacts with client's database. We pass employee id and company id and the stored procedure will return employee details. ...
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How to use a custom comparison function in Python 3?

...e a workaround, but I think I am going to lose some performance by passing all the comparison operators < > = to middle man, since my original custom sort is written in C , it had around 1/2x speed of default sort. – YOU Mar 28 '10 at 5:26 ...