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Why does Clojure have “keywords” in addition to “symbols”?
...cently I've been reading about Clojure . I see that it has both "symbols" and "keywords". Symbols I'm familiar with, but not with keywords.
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In Java, when should I create a checked exception, and when should it be a runtime exception? [dupli
When should I create a checked exception, and when should I make a runtime exception?
14 Answers
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Using vagrant to run virtual machines with desktop environment
...l machines, running on VirtualBox. We would like to move one step further, and use the capabilities of Vagrant to have the description of the machine in a text file and then be able to "raise" that machine based on that text file. Combined to puppet, this would solve us the problem that everyone hav...
What is the purpose of fork()?
In many programs and man pages of Linux, I have seen code using fork() . Why do we need to use fork() and what is its purpose?
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How to change a Git remote on Heroku
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Just followed this approach and appears to be the CURRENT correct way to do it.
– Joe
Sep 10 '14 at 23:16
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How can I convert string to datetime with format specification in JavaScript?
...ave to parse the string yourself (should be easy with regular expressions) and create a new Date object with explicit values for year, month, date, hour, minute and second.
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Is there a destructor for Java?
...hat need to explicitly tidy up, the convention is to define a close method and use finalize only for sanity checking (i.e. if close has not been called do it now and log an error).
There was a question that spawned in-depth discussion of finalize recently, so that should provide more depth if requi...
overlay two images in android to set an imageview
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You can skip the complex Canvas manipulation and do this entirely with Drawables, using LayerDrawable. You have one of two choices: You can either define it in XML then simply set the image, or you can configure a LayerDrawable dynamically in code.
Solution #1 (via XM...
LPCSTR, LPCTSTR and LPTSTR
What the difference between LPCSTR , LPCTSTR and LPTSTR ?
5 Answers
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Hex transparency in colors [duplicate]
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I appreciate that the OP had the android tag, but this proofs useful in iOS as well if you use an extension. Anyway the reason for the comment is that if you use translucent colours on your navigation bar, then use 85% to match the colour of the UIStatusbar ...