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Is there a difference between x++ and ++x in java?
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@Tom, I was just considering how to cast my votes, so here's my interpretation: one small reason to prefer Emil H's answer is that his example code is /slightly/ more informative.
– Jonik
Jul 7 '09 at 21:20
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Combine Date and Time columns using python pandas
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You can cast the columns if the types are different (datetime and timestamp or str) and use to_datetime :
df.loc[:,'Date'] = pd.to_datetime(df.Date.astype(str)+' '+df.Time.astype(str))
Result :
0 2013-01-06 23:00:00
1 2013-...
How can I filter a date of a DateTimeField in Django?
...lementedError: subclasses of basedatabaseoperations may require a datetime_cast_date() method
– AbdurRehman Khan
Oct 1 '19 at 7:04
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How to convert hashmap to JSON object in Java
How to convert or cast hashmap to JSON object in Java, and again convert JSON object to JSON string?
29 Answers
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How to ignore the certificate check when ssl
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I'm using WebRequest, which gets cast to HttpWebRequest, such as: ((HttpWebRequest)request).Accept = contentType;
– B. Clay Shannon
Dec 29 '14 at 18:38
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Getting View's coordinates relative to the root layout
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getRelativeLeft() this is need add cast,but when i add (View) or (button) ((Object) myView.getParent()).getRelativeTop(),it is also not right
– pengwang
Sep 2 '10 at 7:11
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The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
... stream. For int[] or long[] or other arrays where the value can simply be cast to String, I'd look for a non-streaming solution. In fact I am looking.
– Adam
Nov 6 '17 at 12:11
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Convert a positive number to negative in C#
... FYI if you try kokbira's method with a short, myShort = (short) -myShort cast is necessary because the short becomes an int when negated.
– AaronLS
Nov 22 '13 at 21:46
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Precision String Format Specifier In Swift
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This solution won't work in Swift 1.2 without casting the result to String.
– ibesora
Apr 10 '15 at 6:32
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Best way to check for “empty or null value”
...ssion, '') = ' '
Demo
Empty string equals any string of spaces when cast to char(n):
SELECT ''::char(5) = ''::char(5) AS eq1
, ''::char(5) = ' '::char(5) AS eq2
, ''::char(5) = ' '::char(5) AS eq3;
Result:
eq1 | eq2 | eq3
----+-----+----
t | t | t
Test for "null o...