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Inheriting from a template class in c++
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For understanding templates, it's of huge advantage to get the terminology straight because the way you speak about them determines the way to think about them.
Specifically, Area is not a template class, but a class template. That is, it is a template ...
Android: How can I validate EditText input?
I need to do form input validation on a series of EditTexts. I'm using OnFocusChangeListeners to trigger the validation after the user types into each one, but this doesn't behave as desired for the last EditText.
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How to get Url Hash (#) from server side
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We had a situation where we needed to persist the URL hash across ASP.Net post backs. As the browser does not send the hash to the server by default, the only way to do it is to use some Javascript:
When the form submits, grab the ha...
Currency formatting in Python
...mport locale
>>> locale.setlocale( locale.LC_ALL, '' )
'English_United States.1252'
>>> locale.currency( 188518982.18 )
'$188518982.18'
>>> locale.currency( 188518982.18, grouping=True )
'$188,518,982.18'
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Automate ssh-keygen -t rsa so it does not ask for a passphrase
I need to automate ssh-keygen -t rsa with out a password i.e. enter at the prompt.
How can I do that from a shell script?
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RESTful way to create multiple items in one request
...on misconception.
Resources are a higher level representation, unrelated with your data. Operating on a resource can have significant side effects, like firing an alert to a user, updating other related data, initiating a long lived process, etc. For example, we could map a file system or even the ...
Arguments or parameters? [duplicate]
I often find myself confused with how the terms 'arguments' and 'parameters' are used. They seem to be used interchangeably in the programming world.
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iPhone/iOS JSON parsing tutorial [closed]
...rieves a JSON response, and uses that response to populate the rows of a UITableView (assuming it converts the JSON into an NSArray first).
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Extract file name from path, no matter what the os/path format
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Using os.path.split or os.path.basename as others suggest won't work in all cases: if you're running the script on Linux and attempt to process a classic windows-style path, it will fail.
Windows paths can use either backslash or forward sla...
How do I add a simple onClick event handler to a canvas element?
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When you draw to a canvas element, you are simply drawing a bitmap in immediate mode.
The elements (shapes, lines, images) that are drawn have no representation besides the pixels they use and their colour.
Therefore, to get a click event on a canvas element (shape), you need to capt...