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Does setting Java objects to null do anything anymore?
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It depends a bit on when you were thinking of nulling the reference.
If you have an object chain A->B->C, then once A is not reachable, A, B and C will all be eligible for garbage collection (assuming nothing else is r...
How to select last two characters of a string
I need to select last two characters from the variable, whether it is digit or letters.
9 Answers
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JavaScript: Is there a way to get Chrome to break on all errors?
...looking for an equivalent in Chrome to the "break on all errors" functionality of Firebug. In the Scripts tab, Chrome has a "pause on all exceptions", but this is not quite the same as breaking on all errors.
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string sanitizer for filename
I'm looking for a php function that will sanitize a string and make it ready to use for a filename. Anyone know of a handy one?
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Convert to/from DateTime and Time in Ruby
...ppets are taken from O'Reilly's Ruby Cookbook. Their code reuse policy permits this.
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How can I write a regex which matches non greedy? [duplicate]
I need help about regular expression matching with non-greedy option.
3 Answers
3
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Rspec doesn't see my model Class. uninitialized constant error
I'm writing tests on Rspec for my models in Ruby on Rails application.
And I receive this error while starting 'rspec spec'
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Fastest way to check if string contains only digits
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bool IsDigitsOnly(string str)
{
foreach (char c in str)
{
if (c < '0' || c > '9')
return false;
}
return true;
}
Will probably be the fastest way to do it.
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Generate a random number in the range 1 - 10
...bers between 1 and 10 you mean any float that is >= 1 and < 10, then it's easy:
select random() * 9 + 1
This can be easily tested with:
# select min(i), max(i) from (
select random() * 9 + 1 as i from generate_series(1,1000000)
) q;
min | max
-----------------+------...
Why do I need Transaction in Hibernate for read-only operations?
...ds for transactions in this case. But JDBC will create transaction anyway, it's just it will be working in autocommit=true if different option wasn't set explicitly.
But there is no guarantee that your method doesn't write into the database. If you mark method as @Transactional(readonly=true), Sprin...