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Java: difference between strong/soft/weak/phantom reference
...ion or map, and we need to do a lot of processing on them regularly, So in order keep performance we will keep them in the cache.
As far as this is good but now we need different data and we don’t need those Employee objects and these are not referenced from anywhere except the cache. Which is cau...
Array or List in Java. Which is faster?
...ter than getting from an ArrayList, although the difference is only on the order of one nanosecond.
set operations
I ran 2 tests, executing the following statements:
setList: list.set(0, value);
setArray: array[0] = value;
Results (in nanoseconds per call):
a.p.g.a.ArrayVsList.setArray [4.201, 4...
Android and setting width and height programmatically in dp units
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When to wrap quotes around a shell variable?
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How to loop through file names returned by find?
... bmargulies are safe to use with white space in the file/folder names.
In order to also have the - somewhat exotic - case of newlines in the file/folder names covered, you will have to resort to the -exec predicate of find like this:
find . -name '*.txt' -exec echo "{}" \;
The {} is the placehol...
How to create a drop shadow only on one side of an element?
...hat the black shadow must be the last, and has a negative spread (-3px) in order to prevent it from extendig beyond the corners.
Here the fiddle (change the color of the masking shadows to see how it really works).
div{
width: 100px;
height: 100px;
border: 1px solid pink;
b...
Generate a random letter in Python
...+ 26). random.randrange() is exclusive on its upper bound, meaning that in order to get the whole range of characters 97 - 122, the argument passed must be 123.
– Kieran Moynihan
Apr 4 '19 at 17:52
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JavaScript and Threads
...me parameters by the URL and the iframe can communicate with his parent in order to get the result and print it back (the iframe must be in the same domain).
This example doesn't work in all browsers! iframes usually run in the same thread/process as the main page (but Firefox and Chromium seem to ...
CSS Font Border?
With all the new CSS3 border stuff going on ( -webkit , ...) is it now possible to add a border to your font? (Like the solid white border around the blue Twitter logo). If not, are there any not-too-ugly hacks that will accomplish this in CSS/XHTML or do I still need to fire up Photoshop?
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Why should we include ttf, eot, woff, svg,… in a font-face
...maller file size, and that 2) they require far less hinting information in order to render well in environments that allow some form of anti-aliasing."
– Michael McGinnis
Jul 11 '14 at 17:36
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