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ExecutorService, how to wait for all tasks to finish
...sDone() if asked.) This avoids all the manual shutdown, awaitTermination, etc... and allows you to reuse this ExecutorService neatly for multiple cycles, if desired.
There are a few related questions on SO:
How to wait for all threads to finish
Return values from java threads
invokeAll() not wil...
Mark parameters as NOT nullable in C#/.NET?
... it's really about an obsolete style that just propagates through examples etc.
– Jon Skeet
Oct 24 '17 at 7:38
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Difference between app.use and app.get in express.js
...l of them and regardless of HTTP verb used:
GET /
PUT /foo
POST /foo/bar
etc.
app.get(), on the other hand, is part of Express' application routing and is intended for matching and handling a specific route when requested with the GET HTTP verb:
GET /
And, the equivalent routing for your exa...
Unit testing with Spring Security
...ent: session-scoped in a Servlet container, thread-scoped in a JUnit test, etc. The real limiting factor of a Singleton is when it provides an implementation that is inflexible to different environments.
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What is boxing and unboxing and what are the trade offs?
...alue on the heap. Frequently that's just the machine types (ints, floats, etc), structs, and sometimes static sized arrays. .NET-land calls them value types (as opposed to reference types). Java folks call them primitive types. Haskellions just call them unboxed.
** I'm also focusing on Java, H...
Why are variables “i” and “j” used for counters?
... real. This meant that I was the first integer variable, and J the second, etc., so they fell towards use in loops.
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answered Nov 9 '10 at 19:48
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window.onload vs
...l of the common JavaScript libraries, Prototype, ExtJS, Dojo, JQuery, YUI, etc. provide nice wrappers around events that occur as the document is loaded. You can listen for the window onLoad event, and react to that, but onLoad is not fired until all resources have been downloaded, so your event han...
Exploring Docker container's file system
... are relative to the root of the filesystem. #> docker cp 7bb0e258aefe:/etc/debian_version . #> docker cp blue_frog:/etc/hosts .
– Amos Folarin
Apr 24 '14 at 11:37
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Assign same value to multiple variables at once?
...y means $a = ( $b = ( $c = $d ) )
PHP passes primitive types int, string, etc. by value and objects by reference by default.
That means
$c = 1234;
$a = $b = $c;
$c = 5678;
//$a and $b = 1234; $c = 5678;
$c = new Object();
$c->property = 1234;
$a = $b = $c;
$c->property = 5678;
// $a,b,c-&g...
Spring vs EJB. Can Spring replace EJB? [closed]
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Spring ports easily between app servers (e.g., WebLogic, Tomcat, JBOSS, etc.) because it doesn't depend on them.
However, you are locked into Spring.
Spring encourages good OO design practices (e.g., interfaces, layers, separation of concerns) that benefit any problem they touch, even if you de...