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Convert ArrayList to String[] array [duplicate]
... To provide an explanation as to what is going on here, the JVM doesn't know how to blindly downcast Object[] (the result of toArray()) to String[]. To let it know what your desired object type is, you can pass a typed array into toArray(). The typed array can be of any size (new String[1] is vali...
Is there a MySQL option/feature to track history of changes to records?
...ing relatively painless to implement - your existing code doesn't need to know about the triggers and audit stuff.
If the business requirement is "show me what the state of the data was on a given date in the past", it means that the aspect of change over time has entered your solution. Whilst you...
Why are there two kinds of functions in Elixir?
...lt; 0 -> x - y
y -> x + y
end
fun.(2) #=> 3
fun.(-2) #=> 3
Now, let's try something different. Let's try to define different clauses expecting a different number of arguments:
fn
x, y -> x + y
x -> x
end
** (SyntaxError) cannot mix clauses with different arities in functio...
Listing and deleting Git commits that are under no branch (dangling?)
...tion, but if you want, you could still get to it with git checkout 000001. Now the question is, Is 000001 a dangling commit, or an unreachable commit, or neither, or both?
– chharvey
Sep 21 '18 at 1:10
...
How can I undo a `git commit` locally and on a remote after `git push`
...ommits. copy that number from the commit that you want to return back.
2. Now, type in below command:
git reset --hard your_that_copied_string_but_without_quote_mark
you should see message like "HEAD is now at ". you are on clear. What it just have done is to reflect that change locally.
3. Now...
Rotating videos with FFmpeg
...os with FFmpeg. I am working with iPhone videos taken in portrait mode. I know how to determine the current degrees of rotation using MediaInfo (excellent library, btw) but I'm stuck on FFmpeg now.
...
Get the current year in JavaScript
...which you can use as per the requirements, some functions are as,
var now = new Date()
console.log("Current Time is: " + now);
// getFullYear function will give current year
var currentYear = now.getFullYear()
console.log("Current year is: " + currentYear);
// getYear will give you th...
PHP calculate age
...:createFromFormat('d/m/Y', '12/02/1973', $tz)
->diff(new DateTime('now', $tz))
->y;
As of PHP 5.3.0 you can use the handy DateTime::createFromFormat to ensure that your date does not get mistaken for m/d/Y format and the DateInterval class (via DateTime::diff) to get the number of ...
How to build an android library with Android Studio and gradle?
...pure Gradle answer, I use this in IntelliJ on a regular basis but I don't know how the integration is with Android Studio. I am a believer in knowing what is going on for me, so this is how I use Gradle and Android.
TL;DR Full Example - https://github.com/ethankhall/driving-time-tracker/
Disclaim...
When should I use OWIN Katana?
...rvers and framework components. That means that your application code will now be aware of the OWIN interface, but not of the webserver that is serving the request.
In return, applications can be more easily ported between hosts and potentially entire platforms/operating systems. For example, the a...