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What is the point of “final class” in Java?
...I recommend this article: Java: When to create a final class
If they do, when do they use it so I can understand it better and know when to use it.
A final class is simply a class that can't be extended.
(It does not mean that all references to objects of the class would act as if they were...
What is the reason why “synchronized” is not allowed in Java 8 interface methods?
...to support the synchronized modifier on default methods, it turns out that doing so would be dangerous, and so was prohibited.
Synchronized methods are a shorthand for a method which behaves as if the entire body is enclosed in a synchronized block whose lock object is the receiver. It might see...
How do I make the whole area of a list item in my navigation bar, clickable as a link?
...
Don't put padding in the 'li' item. Instead set the anchor tag to display:inline-block; and apply padding to it.
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im...
When is it acceptable to call GC.Collect?
...ccording to MS source code calling GC.Collect(2) every 850ms is just fine. Don't believe? Then just see PresentationCore.dll, MS.Internal.MemoryPressure.ProcessAdd(). I currently have an image processing app (small images, nothing with real memory pressure) where calling GC.Collect(2) takes longer t...
How to add images in select list?
... { background-image:url(others.png); }
In other browsers the only way of doing that would be using some JS widget library, like for example jQuery UI, e.g. using Selectable.
From jQuery UI 1.11, Selectmenu widget is available, which is very close to what you want.
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How to access the ith column of a NumPy multidimensional array?
...
And if you want to access more than one column at a time you could do:
>>> test = np.arange(9).reshape((3,3))
>>> test
array([[0, 1, 2],
[3, 4, 5],
[6, 7, 8]])
>>> test[:,[0,2]]
array([[0, 2],
[3, 5],
[6, 8]])
...
How do I get only directories using Get-ChildItem?
...Container }
If you want the raw string names of the directories, you can do
Get-ChildItem -Recurse | ?{ $_.PSIsContainer } | Select-Object FullName
For PowerShell 3.0 and greater:
dir -Directory
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How do I find out with jQuery if an element is being animated?
... edited Nov 14 '19 at 16:45
Studocwho
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answered Apr 7 '09 at 11:49
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How do I get elapsed time in milliseconds in Ruby?
... using rails or active support, you can use the #in_milliseconds method to do the same conversion (t2 - t1).in_milliseconds
– Nathan Hanna
Sep 8 '17 at 17:55
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Programmatically set left drawable in a TextView
...hIntrinsicBounds(int left, int top, int right, int bottom)
set 0 where you don't want images
Example for Drawable on the left:
TextView textView = (TextView) findViewById(R.id.myTxtView);
textView.setCompoundDrawablesWithIntrinsicBounds(R.drawable.icon, 0, 0, 0);
Alternatively, you can use setCompo...