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What does “Could not find or load main class” mean?
..." - which means no package declaration at the top of the file. For a quick test of some code, I did: javac TestCode.java followed by java TestCode
– Someone Somewhere
Jan 3 '16 at 17:12
...
Regex for quoted string with escaping quotes
...:[^"\\]|\\.)*"/
Works in The Regex Coach and PCRE Workbench.
Example of test in JavaScript:
var s = ' function(){ return " Is big \\"problem\\", \\no? "; }';
var m = s.match(/"(?:[^"\\]|\\.)*"/);
if (m != null)
alert(m);
...
How to assert greater than using JUnit Assert?
I have these values coming from a test
8 Answers
8
...
is_file or file_exists in PHP
...
is_file() is the fastest, but recent benchmark shows that file_exists() is slightly faster for me. So I guess it depends on the server.
My test benchmark:
benchmark('is_file');
benchmark('file_exists');
benchmark('is_readable');
function be...
Case insensitive comparison NSString
...he casing for comparing is usually not a wise thing to do (e.g, the turkey test: moserware.com/2008/02/does-your-code-pass-turkey-test.html). When you have language-supported case comparison (such as caseInsensitiveCompare), always use that.
– Ohad Schneider
No...
in_array multiple values
...bar');
// Evaluation Function - we pass guard and target array
$b=true;
$test = function($x) use (&$b, $b1) {
if (!in_array($x,$b1)) {
$b=false;
}
};
// Actual Test on array (can be repeated with others, but guard
// needs to be initialized again, due to by r...
Count(*) vs Count(1) - SQL Server
...too.
SYS_GUID() in Oracle is quite computation intensive function.
In my test database, t_even is a table with 1,000,000 rows
This query:
SELECT COUNT(SYS_GUID())
FROM t_even
runs for 48 seconds, since the function needs to evaluate each SYS_GUID() returned to make sure it's not a NULL.
H...
Database development mistakes made by application developers [closed]
...any developers forget this and start treating a "means" as an "end". Unit testing is a prime example of this.
I once worked on a system that had a huge hierarchy for clients that went something like:
Licensee -> Dealer Group -> Company -> Practice -> ...
such that you had to join a...
Disable Interpolation when Scaling a
...han pre-scaling and pretty widely-supported).
Live Demo
If you'd like to test the CSS properties discussed in the MDN article on canvas elements, I've made this fiddle which should display something like this, blurry or not, depending on your browser:
...
Get a substring of a char* [duplicate]
...now the position and the length of the substring:
char *buff = "this is a test string";
printf("%.*s", 4, buff + 10);
You could achieve the same thing by copying the substring to another memory destination, but it's not reasonable since you already have it in memory.
This is a good example of av...