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Java - Method name collision in interface implementation
...ue; } // Beta.m()
};
}
}
Although it doesn't allow for casts from AlfaBeta to Beta, downcasts are generally evil, and if it can be expected that an Alfa instance often has a Beta aspect, too, and for some reason (usually optimization is the only valid reason) you want to be able to con...
String formatting named parameters?
...rint('<a href="{0}">{0}</a>'.format(my_url))
which saves you from repeating the argument, or
print('<a href="{url}">{url}</a>'.format(url=my_url))
if you want named parameters.
print('<a href="{}">{}</a>'.format(my_url, my_url))
which is strictly positiona...
Disable Logback in SpringBoot
....g log4j in your classpath. Why do you wish to exclude the default loggers from you application?
– F.O.O
Sep 16 '14 at 11:34
...
F# changes to OCaml [closed]
F# is derived from OCaml, but what major items are missing or added? Specifically I'm curious as to whether the resources available for learning OCaml are also useful to someone who wants to learn F#.
...
Why does one use dependency injection?
...has a logger to use, but it does not know any more where this logger comes from.
And this is where a DI framework comes into play: You configure your mappings once again, and then ask your DI framework to instantiate your application for you. As the Application class requires an ICanPersistData imp...
How can I run code on a background thread on Android?
.... terminated might also be caused by exception, or user killed it manually from settings.
START_STICKY (Sticky Service) is the option given by android that service will restart itself if service terminated.
Remember the question difference between multiprocessing and multithreading?
Service is a ba...
Fling gesture detection on grid layout
... It is worth noting that you can actually obtain scaled, reasonable values from the system using ViewConfiguration class:
final ViewConfiguration vc = ViewConfiguration.get(getContext());
final int swipeMinDistance = vc.getScaledPagingTouchSlop();
final int swipeThresholdVelocity = vc.getScaledMini...
Does Python's time.time() return the local or UTC timestamp?
...563265.81
>>> import datetime
>>> st = datetime.datetime.fromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S')
>>> print st
2012-12-15 01:21:05
>>>
The ts variable is the time returned in seconds. I then converted it to a string using the datetime library making it a...
Measuring text height to be drawn on Canvas ( Android )
...he next section.
Paint.FontMetrics
You can calculate the hight of the font from the font metrics. The height is always the same because it is obtained from the font, not any particular text string.
Paint.FontMetrics fm = mTextPaint.getFontMetrics();
float height = fm.descent - fm.ascent;
The baseli...
Rails formatting date
... the date. (http://ruby-doc.org/core-2.2.1/Time.html#method-i-strftime).
From APIdock:
%Y%m%d => 20071119 Calendar date (basic)
%F => 2007-11-19 Calendar date (extended)
%Y-%m => 2007-11 Calendar date, r...