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Java - removing first character of a string
In Java, I have a String:
12 Answers
12
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How can I avoid running ActiveRecord callbacks?
I have some models that have after_save callbacks. Usually that's fine, but in some situations, like when creating development data, I want to save the models without having the callbacks run. Is there a simple way to do that? Something akin to...
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All possible array initialization syntaxes
...re the current declaration and initialization methods for a simple array.
string[] array = new string[2]; // creates array of length 2, default values
string[] array = new string[] { "A", "B" }; // creates populated array of length 2
string[] array = { "A" , "B" }; // creates populated array of len...
Where can I find Android source code online? [closed]
...plication(e.g.the contact application) ? Is the only way to go to download all there is?
7 Answers
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
...(git commit-tree -m "Throw away branch 'A'" -p A -p B B^{tree})
This basically acts like the (non-existent) merge -s theirs strategy.
You can find the resulting history in the plumbing branch of the demo repository
Not very readable and not as easy to remember compared to the -s ours switch, but it...
How to remove text from a string?
I've got a data-123 string.
11 Answers
11
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Use different Python version with virtualenv
... system currently running with python 2.5.4. I got virtualenv properly installed, everything is working fine. Is there a possibility that I can use a virtualenv with a different version of Python?
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ToList()— does it create a new list?
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return objects[0].SimpleInt;
}
private static void Main(string[] args)
{
RunChangeList();
Console.ReadLine();
}
And answer on my machine -
objs: 45653674
objs[0]: 41149443
objects: 45653674
objects[0]: 41149443
objectList: 39785641
objectList[0]: 41149...
SQL Server: Filter output of sp_who2
Under SQL Server, is there an easy way to filter the output of sp_who2? Say I wanted to just show rows for a certain database, for example.
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SQL Query to concatenate column values from multiple rows in Oracle
... ways depending on what version you have - see the oracle documentation on string aggregation techniques. A very common one is to use LISTAGG:
SELECT pid, LISTAGG(Desc, ' ') WITHIN GROUP (ORDER BY seq) AS description
FROM B GROUP BY pid;
Then join to A to pick out the pids you want.
Note: Out of...