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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...t is both commutative and associative. This means the operation can be parallelized.
This distinction is very important for Big Data / MPP / distributed computing, and the entire reason why reduce even exists. The collection can be chopped up and the reduce can operate on each chunk, then the red...
Real differences between “java -server” and “java -client”?
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This is really linked to HotSpot and the default option values (Java HotSpot VM Options) which differ between client and server configuration.
From Chapter 2 of the whitepaper (The Java HotSpot Performance Engine Architecture):
The JD...
How can I get the list of files in a directory using C or C++?
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In small and simple tasks I do not use boost, I use dirent.h which is also available for windows:
DIR *dir;
struct dirent *ent;
if ((dir = opendir ("c:\\src\\")) != NULL) {
/* print all the files and directories within director...
How to kill an Android activity when leaving it so that it cannot be accessed from the back button?
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You just need to call finish()
Intent intent = new Intent(this, NextActivity.class);
startActivity(intent);
finish();
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Difference between Role and GrantedAuthority in Spring Security
...thority as being a "permission" or a "right". Those "permissions" are (normally) expressed as strings (with the getAuthority() method). Those strings let you identify the permissions and let your voters decide if they grant access to something.
You can grant different GrantedAuthoritys (permissions...
How to use nodejs to open default browser and navigate to a specific URL
...le.
– ForbesLindesay
Mar 2 '14 at 1:11
1
This is a great recommendation, works very well for the ...
How do I disable orientation change on Android?
... It wasn't a good idea in 2009 when I first answered the question and it really isn't a good idea now. See this answer by hackbod for reasons:
Avoid reloading activity with asynctask on orientation change in android
Add android:configChanges="keyboardHidden|orientation" to your AndroidManifest.xm...
Get class that defined method
...ited Jun 20 '14 at 19:44
Aaron Hall♦
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answered Jun 7 '09 at 2:23
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How to add semicolon after method call when inside parameter list in IntelliJ IDEA?
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answered Jul 11 '14 at 13:20
LimaNightHawkLimaNightHawk
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How do I write unit tests in PHP? [closed]
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