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Why should I use the keyword “final” on a method parameter in Java?
...Reassignment
While these answers are intellectually interesting, I've not read the short simple answer:
Use the keyword final when you want the compiler to prevent a
variable from being re-assigned to a different object.
Whether the variable is a static variable, member variable, local vari...
Updating version numbers of modules in a multi-module Maven project
..."parent".) In these situations the given answer will not work.
After much reading and experimentation, it turns out there is a way to use the Versions Maven Plugin to update not only the aggregator POM but also all aggregated modules as well; it is the processAllModules option. The following comman...
Error message “Forbidden You don't have permission to access / on this server” [closed]
...quick solution and SECURITY IS NOT A MATTER, i.e development env, skip and read the original answer instead
Many scenarios can lead to 403 Forbidden:
A. Directory Indexes (from mod_autoindex.c)
When you access a directory and there is no default file found in this directory
AND Apache Options I...
How to solve Permission denied (publickey) error when using Git?
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This error can happen when you are accessing the SSH URL (Read/Write) instead of Git Read-Only URL but you have no write access to that repo.
Sometimes you just want to clone your own repo, e.g. deploy to a server. In this case you actually only need READ-ONLY access. But since tha...
Can we instantiate an abstract class?
...mous subclass.
Emphasis mine.
Also, in JLS - Section # 12.5, you can read about the Object Creation Process. I'll quote one statement from that here: -
Whenever a new class instance is created, memory space is allocated
for it with room for all the instance variables declared in the clas...
How to avoid “if” chains?
...ers. So clearly a win-win: decent code and somebody learned something from reading it.
– x4u
Jun 27 '14 at 12:11
24
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Generating a unique machine id
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@Smith My goal was a small 8 character id. Reading the spec, I made decisions about which fields might vary and excluded them. Then over many years I trimmed out more fields that are not constants from machines. Finally, I ended up storing an encrypted copy of the ra...
How are Anonymous inner classes used in Java?
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Very well explained, even tough I would suggest anyone reading this to look up and see what java 8 and lambda expressions can do to make coding quicker and more readable.
– Pievis
Mar 27 '14 at 20:26
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How is an HTTP POST request made in node.js?
... post_req.write(post_data);
post_req.end();
}
// This is an async file read
fs.readFile('LinkedList.js', 'utf-8', function (err, data) {
if (err) {
// If this were just a small part of the application, you would
// want to handle this differently, maybe throwing an exception
// for...
jQuery Mobile: document ready vs. page events
...and I am having trouble understanding differences between classic document ready and jQuery Mobile page events.
5 Answers
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