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What is a JavaBean exactly?

... A JavaBean is just a standard All properties private (use getters/setters) A public no-argument constructor Implements Serializable. That's it. It's just a convention. Lots of libraries depend on it though. With respect to Serializable, from the API d...
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C++ Convert string (or char*) to wstring (or wchar_t*)

...f8_source_string); Longer online compilable and runnable example: (They all show the same example. There are just many for redundancy...) http://ideone.com/KA1oty http://ide.geeksforgeeks.org/5pRLSh http://rextester.com/DIJZK52174 Note (old): As pointed out in the comments and explained in h...
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How do you mock out the file system in C# for unit testing?

... Edit: Install the NuGet package System.IO.Abstractions. This package did not exist when this answer was originally accepted. The original answer is provided for historical context below: You could do it by creating an interface: inter...
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Reading specific lines only

... with linecache.getlin('some_file', 4) I get the 4th line, not the 5th. – Juan Dec 11 '14 at 18:14 ...
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How does Google's Page Speed lossless image compression work?

... image can be losslessly compressed, and provide a link to download this smaller image. 9 Answers ...
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PostgreSQL: How to pass parameters from command line?

...command line (outside the script). I want to avoid going in and replacing all the ? with actual values, instead I'd like to pass the arguments after the query. ...
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What is the meaning of the /dist directory in open source projects?

Since I first saw a dist/ directory in many open source projects, usually on GitHub, I've been wondering what it means. 4...
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Quickly reading very large tables as dataframes

... MonetDB.R gives you a data type that pretends to be a data frame but is really a MonetDB underneath, increasing performance. Import data with its monetdb.read.csv function. dplyr allows you to work directly with data stored in several types of database. Storing data in binary formats can also be...
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Python argparse: default value or specified value

... import argparse parser = argparse.ArgumentParser() parser.add_argument('--example', nargs='?', const=1, type=int) args = parser.parse_args() print(args) % test.py Namespace(example=None) % test.py --example Namespace(example=1) % test.py --example 2 Namespace(example=2) nargs...
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How can I create directories recursively? [duplicate]

... Specifically: os.makedirs(os.path.join("/home/dail", "first", "second", "third")) – mseery May 14 '11 at 22:41 ...