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Is there a stopwatch in Java?
...or a few reasons:
An alternate time source can be substituted, for testing or performance reasons.
As documented by nanoTime, the value returned has no absolute meaning, and can only be interpreted as relative to another timestamp
returned by nanoTime at a different time. Stopwatch is a ...
Redis strings vs Redis hashes to represent JSON: efficiency?
...en you need to access all/most of the fields in an Object". Has this been tested?
– mikegreiling
Oct 7 '14 at 21:35
...
What online brokers offer APIs? [closed]
...or free. I don't remember all the details, but it let you connect to their test server and pull quotes and make fake trades and such to get your software fine tuned.
Don't know much about cost for an actual account or anything.
...
Why exactly is eval evil?
...ike it's the right thing to do, then do it. Document the Hell out of it. Test the Hell out of it. Double-check correctness and security over and over and over again. But do it.
share
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improve t...
Sort a Map by values
...h easier than all of the foregoing. Use a TreeMap as follows:
public class Testing {
public static void main(String[] args) {
HashMap<String, Double> map = new HashMap<String, Double>();
ValueComparator bvc = new ValueComparator(map);
TreeMap<String, Double...
Why doesn't margin:auto center an image?
...xt-align:center;"
try below code
<html>
<head>
<title>Test</title>
</head>
<body>
<div style="text-align:center;vertical-align:middle;">
<img src="queuedError.jpg" style="margin:auto; width:200px;" />
</div>
</body>
</...
How do I auto-submit an upload form when a file is selected?
...
Does this approach work in Safari? I'm not sure. I've tested Chrome, IE and FF which all work.
– henrywright
Feb 14 '14 at 11:55
...
Check if an element's content is overflowing?
...
}
<div class='demos'>This is some text inside the div which we are testing</div>
<div class='demos'>This is text.</div>
ES6 example:
const isOverflown = ({ clientWidth, clientHeight, scrollWidth, scrollHeight }) => {
return scrollHeight > clientHeight || ...
Does pandas iterrows have performance issues?
... table3 = pd.DataFrame(ret, columns=('letter', 'number2'))
Benchmark test:
-- iterrows() --
100 loops, best of 3: 12.7 ms per loop
letter number2
0 a 0.5
1 b 0.1
2 c 5.0
3 d 4.0
-- itertuple() --
100 loops, best of 3: 12.3 ms per loop
-- to_records...
overlay two images in android to set an imageview
...le/tt" />
</layer-list>
Now set the image using that Drawable:
testimage.setImageDrawable(getResources().getDrawable(R.layout.layer));
Solution #2 (dynamic):
Resources r = getResources();
Drawable[] layers = new Drawable[2];
layers[0] = r.getDrawable(R.drawable.t);
layers[1] = r.getDr...