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How to quickly and conveniently create a one element arraylist [duplicate]
...List backed by a varargs T.
return Arrays.asList(s);
Variable size List
If it needs vary in size you can construct an ArrayList and the fixed-sizeList like
return new ArrayList<String>(Arrays.asList(s));
and (in Java 7+) you can use the diamond operator <> to make it
return new A...
Why do you need to create a cursor when querying a sqlite database?
...be used to fetch data from the DBMS into an
application but also to identify a row in a table to be updated or
deleted. The SQL:2003 standard defines positioned update and
positioned delete SQL statements for that purpose. Such statements do
not use a regular WHERE clause with predicates. In...
Is there a command to list SVN conflicts?
...
On Linux, if you want to see only the conflicts, pipe the status through grep.
svn status | grep -P '^(?=.{0,6}C)'
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Easiest way to copy a table from one database to another?
... one database to a table in another database when the databases are under different users?
18 Answers
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Correct use of flush() in JPA/Hibernate
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if flush() sends data to the database? what happens if an exception is thrown after that? Will the entity manager rollback everything? even the data written in the first flush?
– Jaime Hablutzel
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How to visualize an XML schema? [closed]
I have made an XML Schema - all the code basically - and was wondering if there is a way that the code can generate something like this:
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Rails has_and_belongs_to_many migration
...rom the docs:
There is also a generator which will produce join tables if JoinTable
is part of the name:
Your migration file (note the :id => false; it's what prevents the creation of a primary key):
Rails 3
class CreateRestaurantsUsers < ActiveRecord::Migration
def self.up
c...
Getting name of the class from an instance
...
if all you want to do is test an object to see if it's a type of a certain Class
BOOL test = [self isKindOfClass:[SomeClass class]];
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Efficiency of purely functional programming
...system.
There are a few caveats to be made about this paper. The most significant is that it does not address lazy functional languages, such as Haskell. Bird, Jones and De Moor [1997] demonstrate that the problem constructed by Pippenger can be solved in a lazy functional language in O(n) time, bu...
Convert number to month name in PHP
...c representation of a month, with leading zeroes.
Alternative solution:
If you're using an older PHP version and can't upgrade at the moment, you could this solution.
The second parameter of date() function accepts a timestamp, and you could use mktime() to create one, like so:
$monthNum = 3;
$...