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Why is DarkGray lighter than Gray?
Simple curiosity here, tinged with some practical concerns because I get caught out by this occasionally.
3 Answers
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mysql_config not found when installing mysqldb python interface
I am trying to get a Python script to run on the linux server I'm connected to via ssh. The script uses mysqldb. I have all the other components I need, but when I try to install mySQLdb via setuptools like so:,
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When and why should I use fragments in Android applications? [duplicate]
...ften need the different parts of my applications to have their own special behavior and UI, and I don't know how fragments can help. In most cases, I think it is quicker to create 2 different activities (e.g., 1 for tablets and 1 for handsets), and to share the common behaviors and events in a third...
How do you use https / SSL on localhost?
I would like to know how to setup SSL on my web application on the localhost.
3 Answers
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What is a callback function?
...often confused by what a callback is because of the name of the damned thing.
A callback function is a function which is:
accessible by another function, and
is invoked after the first function if that first function completes
A nice way of imagining how a callback function works is that it is ...
Go to first line in a file in vim?
How do I go to first line in a file in vim ?
4 Answers
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Override devise registrations controller
I have added a field to the sign-up form that is based on a different model, see How do I use nested attributes with the devise model for the gory details. This part is working fine.
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How to implement “select all” check box in HTML?
I have an HTML page with multiple checkboxes.
29 Answers
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Java executors: how to be notified, without blocking, when a task completes?
...e a callback interface to receive whatever parameters you want to pass along in the completion notification. Then invoke it at the end of the task.
You could even write a general wrapper for Runnable tasks, and submit these to ExecutorService. Or, see below for a mechanism built into Java 8.
clas...
Is Dvorak typing appropriate for programming? [closed]
I'm always looking for ways to be more productive, and I've been reading a lot about typing using a Dvorak keyboard.
12 A...