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How can I determine whether a Java class is abstract by reflection

I am interating through classes in a Jar file and wish to find those which are not abstract. I can solve this by instantiating the classes and trapping InstantiationException but that has a performance hit as some classes have heavy startup. I can't find anything obviously like isAbstract() in the C...
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Perform an action in every sub-directory using Bash

I am working on a script that needs to perform an action in every sub-directory of a specific folder. 9 Answers ...
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Struct constructor: “fields must be fully assigned before control is returned to the caller.”

Here is a struct I am trying to write: 5 Answers 5 ...
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When I catch an exception, how do I get the type, file, and line number?

Catching an exception that would print like this: 4 Answers 4 ...
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How to change webservice url endpoint?

I generated a web-service client using JBoss utils (JAX-WS compatible) using Eclipse 'web service client from a wsdl'. 4 An...
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How can I rename a field for all documents in MongoDB?

Assuming I have a collection in MongoDB with 5000 records, each containing something similar to: 7 Answers ...
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Specifying colClasses in the read.csv

I am trying to specify the colClasses options in the read.csv function in R. In my data, the first column "time" is basically a character vector while the rest of the columns are numeric. ...
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Convert decimal to binary in python [duplicate]

Is there any module or function in python I can use to convert a decimal number to its binary equivalent? I am able to convert binary to decimal using int('[binary_value]',2), so any way to do the reverse without writing the code to do it myself? ...
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In R, how to get an object's name after it is sent to a function?

I am looking for the reverse of get() . 3 Answers 3 ...
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How to RedirectToAction in ASP.NET MVC without losing request data

Using ASP.NET MVC there are situations (such as form submission) that may require a RedirectToAction . 6 Answers ...