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How to check if activity is in foreground or in visible background?
...This is how it looks like when Activity B is launched from Activity A.
The order of events is from bottom to top so you can see that Activity A onStop is called after Activity B onResume was already called.
In case a dialog is shown your activity is dimmed in the background and only onPause is ca...
Why can't static methods be abstract in Java?
... It is the job of a Java programmer to know them and their workarounds. In order to have fun we have to use something better than Java in our spare time. But I would not bother about. That is the seed to achieve progress.
– ceving
Dec 4 '12 at 18:48
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What is the difference between a.getClass() and A.class in Java?
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time (getClass()) :23506 ns
time (.class):23838 ns
And switching the order of the calls will even result in getClass() being faster.
import java.util.LinkedHashMap;
public class PerfomanceClass {
public static void main(String[] args) {
long time2 = System.nanoTime();
Class class2 =...
sys.argv[1] meaning in script
...m :
user_args = sys.argv[:-2]
Suppose you want the arguments in reverse order :
user_args = sys.argv[::-1]
Hope this helps.
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How can I include a YAML file inside another?
... consume an inordinate amount of time because of recursive search.
In order to enable recursive argument, we shall write the !include tag in Mapping or Sequence mode:
Arguments in Sequence mode:
!include [tests/data/include.d/**/*.yaml, true]
Arguments in Mapping mode:
!include {pathna...
Check if a given key already exists in a dictionary and increment it
...ward suggests "the overhead in Exception handling in languages is always a order of magnitude greater than the hash table lookup that determines whether the item exists or not in the dictionary", while you are saying "It also avoids the duplicate key lookup in the dictionary ... if lookup is expensi...
How to append to a file in Node?
...tten by timestamp. You can test with example, set 1000 in place of 100000, order will be random, depends on access to file.
If you want to append to a file, you must use a writable stream like this:
var stream = fs.createWriteStream("append.txt", {flags:'a'});
console.log(new Date().toISOString())...
What does iterator->second mean?
...lue" would have been more intuitive than "first" and "second", which imply ordering.
– ahoffer
Sep 5 '18 at 17:16
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Request format is unrecognized for URL unexpectedly ending in
...Value)
at BitMeter2.frmMain.tickProcessing(Boolean fromTimerEvent)
In order to fix this error I had to add the ScriptHandlerFactory lines to web.config:
<system.webServer>
<handlers>
<remove name="ScriptHandlerFactory" />
<add name="ScriptHandlerFactory" ...
Performance of Find() vs. FirstOrDefault() [duplicate]
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Praying for the day C# gets higher order types
– ditoslav
Mar 2 '18 at 12:05
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