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Can I set null as the default value for a @Value in Spring?
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This is really old, but you can use Spring EL now, e.g.
@Value("${stuff.value:#{null}}")
See this question.
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Create new tmux session from inside a tmux session
... Thanks for the very complete answer, this answered a few of my questions all at once!
– mdekkers
Jun 1 '18 at 4:33
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How can I repeat a character in Bash?
...ay matter with large repeat counts).
Summary:
If your repeat count is small, say up to around 100, it's worth going with the Bash-only solutions, as the startup cost of external utilities matters, especially Perl's.
Pragmatically speaking, however, if you only need one instance of repeating ch...
How do you round UP a number in Python?
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Elaboration: math.ceil returns the smallest integer which is greater than or equal to the input value. This function treats the input as a float (Python does not have strongly-typed variables) and the function returns a float. If you want an int, you can constru...
What does “|=” mean? (pipe equal operator)
...ults | Notification.DEFAULT_SOUND;
where | is the bit-wise OR operator.
All operators are referenced here.
A bit-wise operator is used because, as is frequent, those constants enable an int to carry flags.
If you look at those constants, you'll see that they're in powers of two :
public static...
Forms authentication timeout vs sessionState timeout
...nger be authenticated—they will be redirected to the login page automatically. The slidingExpiration=true value is basically saying that as long as the user makes a request within the timeout value, they will continue to be authenticated (more details here). If you set slidingExpiration=false the ...
How to iterate over a JSONObject?
I use a JSON library called JSONObject (I don't mind switching if I need to).
15 Answers
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How do I clone a range of array elements to a new array?
...e an array X of 10 elements. I would like to create a new array containing all the elements from X that begin at index 3 and ends in index 7. Sure I can easily write a loop that will do it for me but I would like to keep my code as clean as possible. Is there a method in C# that can do it for me?
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Remove empty strings from a list of strings
I want to remove all empty strings from a list of strings in python.
12 Answers
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When to use AtomicReference in Java?
...ke the key to needing this is because you need to do a "compareAndSet". If all I needed to do was set I wouldn't need the AtomicObject at all because of reference updates themselves being atomic?
– sMoZely
Jan 20 '13 at 21:46
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