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In MySQL what does “Overhead” mean, what is bad about it, and how to fix it?
...e used to run some of the queries, so you should only worry if this gets really high.
You can compare 'Optimizing the table' with the defragmenting of your hard drive.
I quote:
Every database will, over time,
require some form of maintenance to
keep it at an optimal performance
level....
Can I use Class.newInstance() with constructor arguments?
...t clarifying - getDeclaredConstructor is not a static method, you have to call it on the instance of the Class for your specific class.
– clum
May 22 '15 at 6:31
1
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Check if a subview is in a view
...he same way, when the button with that IBAction is touched again should call removeFromSuperview on that subview added on that IBAction :
...
Create a unique number with javascript time
...ow() + Math.random()
If there is a 1 millisecond difference in function call, it is 100% guaranteed to generate a different number. For function calls within the same millisecond you should only start to be worried if you are creating more than a few million numbers within this same millisecond, w...
Why is sizeof considered an operator?
.... Indeed, that's kind of the point of sizeof.
A function would differ on all those points. There are probably other differences between a function and a unary operator, but I think that's enough to show why sizeof could not be a function even if there was a reason to want it to be.
...
Why does Bootstrap set the line-height property to 1.428571429?
..., you want to make sure you have ample white space between your rows. This allows for ascenders and descenders without intruding on other rows. Also having ample white space allows your eyes to develop a visual rhythm while reading.
Also keeping the line-height unitless makes it more versatile. For...
matplotlib Legend Markers Only Once
...
I like to change my matplotlib rc parameters dynamically in every python script. To achieve this goal I simply use somthing like that at the beginning of my python files.
from pylab import *
rcParams['legend.numpoints'] = 1
This will apply to all plots generated from my pyt...
How can I check whether Google Maps is fully loaded?
... you're using the Maps API v3, this has changed.
In version 3, you essentially want to set up a listener for the bounds_changed event, which will trigger upon map load. Once that has triggered, remove the listener as you don't want to be informed every time the viewport bounds change.
This may cha...
Apk location in New Android Studio
...ndroid Studio and cant find the APK of the application in IDE,where it actually locates?
31 Answers
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Convert java.time.LocalDate into java.util.Date type
...resents milliseconds on the timeline in the Epoch - the base reference for all other dates and times.
We need to convert the Date into a ZonedDateTime, with a Time and a Zone, to do the conversion:
LocalDate ldate = ...;
Instant instant = Instant.from(ldate.atStartOfDay(ZoneId.of("GMT")));
Date da...