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How to convert Milliseconds to “X mins, x seconds” in Java?
...nishes, I will subtract the current System.currentTimeMillis() from the start variable, and I want to show them the time elapsed using a human readable format such as "XX hours, XX mins, XX seconds" or even "XX mins, XX seconds" because its not likely to take someone an hour.
...
Reduce, fold or scan (Left/Right)?
... a single result.
foldLeft and foldRight cumulate a single result using a start value.
scanLeft and scanRight cumulate a collection of intermediate cumulative results using a start value.
Accumulate
From LEFT and forwards...
With a collection of elements abc and a binary operator add we can exp...
SourceKitService Terminated
...urceKitService Terminated error.
The symptoms I was having:
When I would start up a new playground, I would receive an error about not being able to communicate with the playground (Error running playground: Failed prepare for communication with playground. See this image on twitter.
When I would ...
Difference between Java SE/EE/ME?
Which one should I install when I want to start learning Java? I'm going to start with some basics, so I will write simple programs that create files, directories, edit XML files and so on, nothing too complex for now.
...
List of Big-O for PHP functions
...ough array would hurt you before the characteristics of lookup Big-O would start taking effect. For example the difference between a call to array_key_exists at N=1 and N=1,000,000 is ~50% time increase.
Interesting Points:
isset/array_key_exists is much faster than in_array and array_search
+(un...
Regular expression for floating point numbers
.... This is probably not what you've intended.
To fix this, it's helpful to start by "anchoring" your regex with the bare-minimum required string, probably a single digit:
\d+
Now we want to add the decimal part, but it doesn't go where you think it might:
\d+\.?\d* /* This isn't quite correct. *...
How do I make a splash screen?
...ou how to display a splash screen for a fixed amount of time when your app starts for e.g. branding reasons. E.g. you might choose to show the splash screen for 3 seconds. However if you want to show the spash screen for a variable amount of time (e.g. app startup time) you should check out Abdullah...
contenteditable, set caret at the end of the text (cross-browser)
...lt;p contentEditable>foo bar </p>
Placing the caret at the start is almost identical: it just requires changing the Boolean passed into the calls to collapse(). Here's an example that creates functions for placing the caret at the start and at the end:
function createCaretPlacer(atS...
Best documentation for Boost:asio?
...ng at the different examples, I would think they should suffice to get you started. If you want to run away with it, then the reference documentation should help you a lot.
Ask around in the Boost Users and Boost Developers mailing list if you're really stuck or looking for specific guidance. I'm pr...
Calling Java from Python
...CC, javabridge, Jpype and Py4j.
Py4j is a bit hard to use, as you need to start a gateway, adding another layer of fragility.
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