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Sorted collection in Java
...n/should be used for maintaining a sorted list in Java. I have tried Map and Set , but they weren't what I was looking for.
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Controlling the screenshot in the iOS 7 multitasking switcher
... to find some information regarding the new multitasking switcher in iOS 7 and especially the screenshot that the OS takes when the app is going into hibernation.
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When should I use cross apply over inner join?
...NER JOIN condition.
You could probably do something like that using CTE's and window function:
WITH t2o AS
(
SELECT t2.*, ROW_NUMBER() OVER (PARTITION BY t1_id ORDER BY rank) AS rn
FROM t2
)
SELECT t1.*, t2o.*
FROM t1
INNER JOIN
t2o
ON t2o.t1...
Writing to an Excel spreadsheet
... to write some data from my program to a spreadsheet. I've searched online and there seem to be many packages available (xlwt, XlsXcessive, openpyxl). Others suggest to write to a .csv file (never used CSV and don't really understand what it is).
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How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
Can anyone explain how to implement one-to-one, one-to-many and many-to-many relationships while designing tables with some examples?
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mysql Foreign key constraint is incorrectly formed error
I have two tables, table1 is the parent table with a column ID and table2 with a column IDFromTable1 (not the actual name) when I put a FK on IDFromTable1 to ID in table1 I get the error Foreign key constraint is incorrectly formed error . I would like to delete table 2 record if tab...
printf with std::string?
My understanding is that string is a member of the std namespace, so why does the following occur?
7 Answers
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Passing arguments to “make run”
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@Rob: Nmake has never supported ${} for macro expansion, and it appears to be an archaic form now in make. $() is recommended by every online tutorial I've looked at. $() is also more consistent with other tools such as bash.
– John Knoeller
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Client-server synchronization pattern / algorithm?
... should look at how distributed change management works. Look at SVN, CVS and other repositories that manage deltas work.
You have several use cases.
Synchronize changes. Your change-log (or delta history) approach looks good for this. Clients send their deltas to the server; server consolidat...
Why does Boolean.ToString output “True” and not “true”
Is there a valid reason for it being "True" and not "true"? It breaks when writing XML as XML's boolean type is lower case , and also isn't compatible with C#'s true/false (not sure about CLS though).
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