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Convert to/from DateTime and Time in Ruby
How do you convert between a DateTime and a Time object in Ruby?
6 Answers
6
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Java: when to use static methods
... definitely be static.
So in a class Car you might have a method:
double convertMpgToKpl(double mpg)
...which would be static, because one might want to know what 35mpg converts to, even if nobody has ever built a Car. But this method (which sets the efficiency of one particular Car):
void set...
Convert PEM to PPK file format
Is there a way to convert PEM files to PPK files? (you may guess that Amazon EC2 gives me a PEM file, and I need to use the PPK format for SSH connectivity).
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How to get current date & time in MySQL?
...g / search / comparison performance.
UNIX_TIMESTAMP()
One can always convert to human readable formats afterwards, internationalizing as is individually most convenient.
FROM_ UNIXTIME (unix_timestamp, [format ])
sha...
How do I convert dates in a Pandas data frame to a 'date' data type?
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The pandas timestamp have both date and time. Do you mean convert it into python date object?
– waitingkuo
May 31 '13 at 8:42
7
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Java String remove all non numeric characters
...() are duplicates. Also if you see an answer in comment you can ask mod to convert it to an answer or even add an answer on your own - answers in comments are discouraged on StackOverlow.
– Boris Treukhov
Jan 31 '18 at 17:20
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How do I call ::std::make_shared on a class with only protected or private constructors?
...ivate ctor and a create method returning a raw pointer, and I am trying to convert them to smart pointers.
– zahir
Aug 11 '15 at 7:09
2
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How can I remove specific rules from iptables?
...ks this way:
1. Add temporary rule with some comment:
comment=$(cat /proc/sys/kernel/random/uuid | sed 's/\-//g')
iptables -A ..... -m comment --comment "${comment}" -j REQUIRED_ACTION
2. When the rule added and you wish to remove it (or everything with this comment), do:
iptables-save | grep -v...
How to schedule a periodic task in Java?
...nitialDelay. (I think the internal ScheduledExecutorService implementation converts DAYS to nanoseconds anyway).
– Sam Barnum
Mar 21 '19 at 17:02
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How to convert IPython notebooks to PDF and HTML?
I want to convert my ipython-notebooks to print them, or simply send them in html format. I have noticed that there exists a tool to do that already, nbconvert . Although I have downloaded it, I have no idea how to convert the notebook, with nbconvert2.py since nbconvert says that it is deprecated....