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Why an abstract class implementing an interface can miss the declaration/implementation of one of th
A curious thing happens in Java when you use an abstract class to implement an interface: some of the interface's methods can be completely missing (i.e. neither an abstract declaration or an actual implementation is present), but the compiler does not complain.
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Is it possible to disable floating headers in UITableView with UITableViewStylePlain?
I'm using a UITableView to layout content 'pages'. I'm using the headers of the table view to layout certain images etc. and I'd prefer it if they didn't float but stayed static as they do when the style is set to UITableViewStyleGrouped .
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TSQL - How to use GO inside of a BEGIN .. END block?
I am generating a script for automatically migrating changes from multiple development databases to staging/production. Basically, it takes a bunch of change-scripts, and merges them into a single script, wrapping each script in a IF whatever BEGIN ... END statement.
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How to toggle a value in Python
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Solution using NOT
If the values are boolean, the fastest approach is to use the not operator:
>>> x = True
>>> x = not x # toggle
>>> x
False
>>> x = not x # toggle
>>> x
Tru...
How to find first element of array matching a boolean condition in JavaScript?
I'm wondering if there's a known, built-in/elegant way to find the first element of a JS array matching a given condition. A C# equivalent would be List.Find .
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What is aspect-oriented programming?
I understand object oriented programming, and have been writing OO programs for a long time. People seem to talk about aspect-oriented programming, but I've never really learned what it is or how to use it. What is the basic paradigm?
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How to implement the factory method pattern in C++ correctly
There's this one thing in C++ which has been making me feel uncomfortable for quite a long time, because I honestly don't know how to do it, even though it sounds simple:
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log all sql queries
...y request. There are several Django snippets out there for this sort of thing:
http://djangosnippets.org/snippets/290/
http://djangosnippets.org/snippets/264/
Those are concerned with printing to the terminal, but it wouldn't be hard to adapt them to use python's logging library.
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Proper use of the IDisposable interface
I know from reading the Microsoft documentation that the "primary" use of the IDisposable interface is to clean up unmanaged resources.
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When to catch java.lang.Error?
In what situations should one catch java.lang.Error on an application?
16 Answers
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