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Calculating days between two dates with Java
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UPDATE: The original answer from 2013 is now outdated because some of the classes have been replaced. The new way of doing this is using the new java.time classes.
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd MM yyyy");
String inputString1 = "23 ...
To find whether a column exists in data frame or not
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202
Assuming that the name of your data frame is dat and that your column name to check is "d", yo...
Border around specific rows in a table?
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answered Jan 9 '12 at 5:20
Simon EastSimon East
42.7k1313 gold badges124124 silver badges116116 bronze badges
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psql invalid command \N while restore sql
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203
Postgres uses "\N" as substitute symbol for NULL value. But all psql commands starts by backsl...
PHP Replace last occurrence of a String in a String?
...ge the name?)
– alexis
Dec 5 '18 at 20:55
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How can I parse a time string containing milliseconds in it with python?
...ot left!) to 6 decimal places. 1 gets parsed to 100000, 12 gets parsed to 120000, and 1234567 produces ValueError: unconverted data remains: 7
– user443854
Apr 4 '13 at 14:45
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JNI converting jstring to char *
...char* that you want.
– Loduwijk
Jun 20 '17 at 20:44
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How to make Sequelize use singular table names
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answered Apr 20 '14 at 20:25
Luis Carlos ChavarríaLuis Carlos Chavarría
3,29122 gold badges2222 silver badges2626 bronze badges
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How to call a method after a delay in Android
...ert Christopher
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answered Feb 6 '12 at 19:55
kontinuitykontinuity
22.5k33 go...
How to create a GUID/UUID in Python
...t; import uuid
>>> uuid.uuid4()
UUID('bd65600d-8669-4903-8a14-af88203add38')
>>> str(uuid.uuid4())
'f50ec0b7-f960-400d-91f0-c42a6d44e3d0'
>>> uuid.uuid4().hex
'9fe2c4e93f654fdbb24c02b15259716c'
sh...