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What is the aspnet_client folder for under the IIS structure?
...cript support for the validation controls and other functionality. If you don't have a .NET 1.1 site or older running it should be safe to delete it. I would rename it first to ensure it doesn't cause any problems.
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How to convert an Array to a Set in Java
... like to convert an array to a Set in Java. There are some obvious ways of doing this (i.e. with a loop) but I would like something a bit neater, something like:
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How to handle a lost KeyStore password in Android?
I have forgotten my Keystore password and I don't really know what to do anymore (I can't or won't give any excuses for it). I want to update my app because I just fixed a bug but it's not possible anymore. What happens if I use the same Keystore but create a new key? Would I still be able to update...
Why is an array not assignable to Iterable?
...ot Iterable? I guess Iterable forces adding an iterator method, and arrays don't implement methods. char[] doesn't even override toString. Anyway, arrays of references should be considered less than ideal - use Lists. As dfa comments, Arrays.asList will do the conversion for you, explicitly.
(Havin...
Can enums be subclassed to add new elements?
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No, you can't do this in Java. Aside from anything else, d would then presumably be an instance of A (given the normal idea of "extends"), but users who only knew about A wouldn't know about it - which defeats the point of an enum being a ...
Using i and j as variables in Matlab
... called i or j will override them, potentially silently breaking code that does complex maths.
Possible solutions include using ii and jj as loop variables instead, or using 1i whenever i is required to represent the imaginary unit.
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JetBrains / IntelliJ keyboard shortcut to collapse all methods
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You may take a look at intellij code folding shortcuts.
For Windows/Linux do: Ctrl+Shift+-
For mac use Command+Shift+-
To unfold again do Ctrl+Shift++ or Command+Shift++ respectivley.
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When should null values of Boolean be used?
... boolean column in a database, for example). The null value might mean "we don't know if it's true or false" in this context.
each time a method needs an Object as argument, and you need to pass a boolean value. For example, when using reflection or methods like MessageFormat.format().
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How do I concatenate or merge arrays in Swift?
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Do we know whether Swift 2's Copy-On-Write intelligence extends to determining whether the b part of a is modified (therefore possibly eliding a copy of b during a.appendContentsOf(b))?
– Ephemera
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How do I start a program with arguments when debugging?
... debug a program in Visual Studio 2008. The problem is that it exits if it doesn't get arguments. This is from the main method:
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