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Can I set null as the default value for a @Value in Spring?

... This is really old, but you can use Spring EL now, e.g. @Value("${stuff.value:#{null}}") See this question. share | improve this an...
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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 add a comment  |  ...
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How do you round UP a number in Python?

... 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...
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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...
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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 ...
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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 12 ...
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Changing the color of the axis, ticks and labels for a plot in matplotlib

... As a quick example (using a slightly cleaner method than the potentially duplicate question): import matplotlib.pyplot as plt fig = plt.figure() ax = fig.add_subplot(111) ax.plot(range(10)) ax.set_xlabel('X-axis') ax.set_ylabel('Y-axis') ax.spines['bottom'].set_color('red') ax.spines['top...
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Variable's scope in a switch case [duplicate]

... without a VERY good reason. It's a recipe for confusion and bugs. It visually hides the fact that the first case block (if it not were for the return) "continues" even after the closing brace - and helps to forget the break. – leonbloy May 18 '11 at 18:16 ...