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How can I group by date time column without taking time into consideration
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answered May 19 '11 at 5:26
OdedOded
452k8484 gold badges820820 silver badges963963 bronze badges
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Difference between del, remove and pop on lists
...moves the item at a specific index and returns it.
>>> a = [4, 3, 5]
>>> a.pop(1)
3
>>> a
[4, 5]
Their error modes are different too:
>>> a = [4, 5, 6]
>>> a.remove(7)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
V...
Modulo operation with negative numbers
...akes sense, logically. Right?
Let's see what this leads to:
Example A. 5/(-3) is -1
=> (-1) * (-3) + 5%(-3) = 5
This can only happen if 5%(-3) is 2.
Example B. (-5)/3 is -1
=> (-1) * 3 + (-5)%3 = -5
This can only happen if (-5)%3 is -2
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Replace a character at a specific index in a string?
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578
String are immutable in Java. You can't change them.
You need to create a new string with the...
How to remove certain characters from a string in C++?
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string str("(555) 555-5555");
char chars[] = "()-";
for (unsigned int i = 0; i < strlen(chars); ++i)
{
// you need include <algorithm> to use general algorithms like std::remove()
str.erase (std::remove(str...
How to convert .pfx file to keystore with private key?
...type pkcs12
-destkeystore clientcert.jks -deststoretype JKS
Using JDK 1.5 or below
OpenSSL can do it all. This answer on JGuru is the best method that I've found so far.
Firstly make sure that you have OpenSSL installed. Many operating systems already have it installed as I found with Mac OS X....
How to get an object's property's value by property name?
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edited Feb 20 '15 at 5:17
answered Jan 18 '13 at 19:39
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How to extract the n-th elements from a list of tuples?
... edited Mar 6 '19 at 20:33
cs95
231k6060 gold badges391391 silver badges456456 bronze badges
answered Jul 22 '10 at 11:04
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Change date format in a Java string
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514
Use LocalDateTime#parse() (or ZonedDateTime#parse() if the string happens to contain a time zo...
Android: Vertical alignment for multi line EditText (Text area)
I want to have 5 lines for the height of the text area. I am using the following code.
7 Answers
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