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What's the most appropriate HTTP status code for an “item not found” error page
... with id=1 and it no longer exists when you try to update it, some other thread or process ignored your lock (or you didn't set one) and deleted it. That's not good. Alternatively, if you're trying to update object id=n (where n is provided to you) without first checking it exists, you're missing a ...
GB English, or US English?
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Generally I would be a stickler for GB spelling but I think that the code reads a lot better if it is consistent and I find:
Color lineColor = Color.Red;
to look a lot better than:
Color lineColour = Color.Red;
I guess that ultimately it doesn't really matter.
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Why does parseInt(1/0, 19) return 18?
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Here's the sequence of events:
1/0 evaluates to Infinity
parseInt reads Infinity and happily notes that I is 18 in base 19
parseInt ignores the remainder of the string, since it can't be converted.
Note that you'd get a result for any base >= 19, but not for bases below that. For bases...
How can I get the Google cache age of any URL or web page? [closed]
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wow, it even works around robots.txt; I use it to read blogger since our corporate firewall disabled its URL
– Gabor
Apr 13 '12 at 10:17
26
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How to hide only the Close (x) button?
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Did you read the question where he specified that that wasn't an option?
– Servy
Nov 9 '12 at 20:40
28
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Regular expression for matching HH:MM time format
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@SergO please read his answer more carefully. His answer is for both a leading zero and without.
– Alexander
Feb 5 '14 at 21:02
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Does Spring Data JPA have any way to count entites using method name resolving?
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1) The new way, using query derivation for both count and delete queries. Read this, (Example 5).
Example,
public interface UserRepository extends CrudRepository<User, Integer> {
Long countByName(String name);
}
2) The old way, Using @Query annotation.
Example,
public interface Us...
Undefined reference to pthread_create in Linux
...e following demo off the web from https://computing.llnl.gov/tutorials/pthreads/
14 Answers
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Does a method's signature in Java include its return type?
... public char myMethod(int param) {}
will give you can error: method is already defined in class, which further confirms the above statement.
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Add new column with foreign key constraint in one command
...The syntax for IBM DB2 LUW is similar, repeating the keyword ADD but (if I read the diagram correctly) not requiring a comma to separate the added items.
Microsoft SQL Server syntax:
ALTER TABLE one
ADD two_id INTEGER,
FOREIGN KEY(two_id) REFERENCES two(id);
Some others do not allow you ...