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Better way to revert to a previous SVN revision of a file?
I accidentally committed too many files to an SVN repository and changed some things I didn't mean to. (Sigh.) In order to revert them to their prior state, the best I could come up with was
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How to SSH to a VirtualBox guest externally through a host? [closed]
...ows 7 machine. How do I set it up so that I can access the webserver externally through SSH?
15 Answers
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How to measure elapsed time in Python?
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If you just want to measure the elapsed wall-clock time between two points, you could use time.time():
import time
start = time.time()
print("hello")
end = time.time()
print(end - start)
This gives the execution time in seconds.
Another option since 3.3 might ...
How to maintain a Unique List in Java?
...he JAVADoc:
A collection that contains no duplicate elements. More formally, sets contain no pair of elements e1 and e2 such that e1.equals(e2), and at most one null element. As implied by its name, this interface models the mathematical set abstraction.
Note: Great care must be exercised i...
how to create a Java Date object of midnight today and midnight tomorrow?
In my code I need to find all my things that happened today. So I need to compare against dates from today at 00:00am (midnight early this morning) to 12:00pm (midnight tonight).
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What does the CSS rule “clear: both” do?
... be explaining how the floats work here (in detail), as this question generally focuses on Why use clear: both; OR what does clear: both; exactly do...
I'll keep this answer simple, and to the point, and will explain to you graphically why clear: both; is required or what it does...
Generally desi...
What is the difference between aggregation, composition and dependency? [duplicate]
...e exists composition between class and students."
– TallPaul
Oct 11 '10 at 3:21
19
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How to determine if a decimal/double is an integer?
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For floating point numbers, n % 1 == 0 is typically the way to check if there is anything past the decimal point.
public static void Main (string[] args)
{
decimal d = 3.1M;
Console.WriteLine((d % 1) == 0);
d = 3.0M;
Console.WriteLine((d % 1) == 0);
}
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How to update Ruby to 1.9.x on Mac?
...ve) RVM (Ruby Version Manager) is the Standard for upgrading your Ruby installation on OSX: https://rvm.io
To get started, open a Terminal Window and issue the following command:
\curl -L https://get.rvm.io | bash -s stable --ruby
( you will need to trust the RVM Dev Team that the command is no...
Submit jQuery UI dialog on
...ned, which means if the dialog is opened twice, the event handler will be called twice.
– Elezar
Apr 29 '14 at 23:32
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