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How to print (using cout) a number in binary form?
I'm following a college course about operating systems and we're learning how to convert from binary to hexadecimal, decimal to hexadecimal, etc. and today we just learned how signed/unsigned numbers are stored in memory using the two's complement (~number + 1).
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What's the best way to iterate an Android Cursor?
I frequently see code which involves iterating over the result of a database query, doing something with each row, and then moving on to the next row. Typical examples are as follows.
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How can I find WPF controls by name or type?
I need to search a WPF control hierarchy for controls that match a given name or type. How can I do this?
18 Answers
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Change Active Menu Item on Page Scroll?
As you scroll down the page, the active menu item changes. How is this done?
4 Answers
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Jackson - Deserialize using generic class
I have a json string, which I should deSerialize to the following class
12 Answers
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Regular expression to limit number of characters to 10
I am trying to write a regular expression that will only allow lowercase letters and up to 10 characters. What I have so far looks like this:
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Why can't I initialize non-const static member or static array in class?
...c data members in class?
The C++ standard allows only static constant integral or enumeration types to be initialized inside the class. This is the reason a is allowed to be initialized while others are not.
Reference:
C++03 9.4.2 Static data members
§4
If a static data member is of const int...
Python `if x is not None` or `if not x is None`?
I've always thought of the if not x is None version to be more clear, but Google's style guide and PEP-8 both use if x is not None . Is there any minor performance difference (I'm assuming not), and is there any case where one really doesn't fit (making the other a clear winner for my convent...
How can you set class attributes from variable arguments (kwargs) in python
...s with a constructor (or other function) that takes a variable number of arguments and then sets them as class attributes conditionally.
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Javascript split regex question
hello I am trying what I thought would be a rather easy regex in Javascript but is giving me lots of trouble.
I want the ability to split a date via javascript splitting either by a '-','.','/' and ' '.
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