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How to establish a connection pool in JDBC?
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If you need a standalone connection pool, my preference goes to C3P0 over DBCP (that I've ment...
C++ template constructor
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answered Oct 18 '10 at 15:59
James McNellisJames McNellis
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android View not attached to window manager
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answered Jan 30 '18 at 10:21
Kishan SolankiKishan Solanki
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Checking if a string can be converted to float in Python
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Richard Simões
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answered Apr 9 '09 at 21:55
dbrdbr
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How to remove specific element from an array using python
... Aran-Fey
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answered Aug 19 '11 at 7:28
BogdanBogdan
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How to extract numbers from a string in Python?
... extract only positive integers, try the following:
>>> str = "h3110 23 cat 444.4 rabbit 11 2 dog"
>>> [int(s) for s in str.split() if s.isdigit()]
[23, 11, 2]
I would argue that this is better than the regex example because you don't need another module and it's more readable bec...
How can I make pandas dataframe column headers all lowercase?
...r x in data]
– joctee
Feb 19 '18 at 10:26
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Pandas groupby: How to get a union of strings
...n [5]: df
Out[5]:
A B C
0 1 0.749065 This
1 2 0.301084 is
2 3 0.463468 a
3 4 0.643961 random
4 1 0.866521 string
5 2 0.120737 !
In [6]: df.dtypes
Out[6]:
A int64
B float64
C object
dtype: object
When you apply your own function, the...
SQL: capitalize first letter only [duplicate]
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Ullas
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answered Mar 8 '13 at 9:36
Scott SellersScott...
How to write file if parent folder doesn't exist?
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