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IntelliJ IDEA generating serialVersionUID
... not generate serialVersionUID with some random value, we should give it a meaningful value.
Here is a details comment on this. I am coping the comment here.
Actually, you should not be "generating" serial version UIDs. It is a dumb "feature" that stems from the general misunderstanding of ho...
What does iterator->second mean?
...has two members named first and second (see here), with quite an intuitive meaning. Thus, given an iterator i to a certain map, the expression:
i->first
Which is equivalent to:
(*i).first
Refers to the first (const) element of the pair object pointed to by the iterator - i.e. it refers to a...
What is the meaning of the /dist directory in open source projects?
... many open source projects, usually on GitHub, I've been wondering what it means.
4 Answers
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MySQL ON vs USING?
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where hasAirport ; - what does this mean ? no value is there to compare with .
– Istiaque Ahmed
Nov 9 '17 at 17:11
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What does new self(); mean in PHP?
...ar_dump($a);
Here, you'll get :
object(MyChildClass)#1 (0) { }
Which means self means MyChildClass -- i.e. the class in which it is written.
For the second situation, the code would look like this :
class MyParentClass {
public static function getInstance() {
return new self();
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Android: How to bind spinner to custom object list?
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So wrong from the scalability point of view - it means your "objects" can never be dynamic - bad practice
– Srneczek
Oct 23 '15 at 10:08
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What's the absurd function in Data.Void useful for?
... "Life is a little bit hard, since Haskell is non strict" — what do you meant by that exactly?
– Erik Kaplun
Oct 26 '15 at 1:23
5
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What is the difference between precision and scale?
...t. The scale can range from -84 to 127.
In your case, ID with precision 6 means it won't accept a number with 7 or more significant digits.
Reference:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28318/datatype.htm#CNCPT1832
That page also has some examples that will make you underst...
What does “@” mean in Windows batch scripts
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It means not to output the respective command. Compare the following two batch files:
@echo foo
and
echo foo
The former has only foo as output while the latter prints
H:\Stuff>echo foo
foo
(here, at least). As can b...
What does it mean when git says a file “needs update”?
...has explaining this marked as a TODO. If someone could explain A) what it means; and B) how to fix it, I would be extremely grateful.
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