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Value Change Listener to JTextField
...ntioned in Jean-Marc Astesana's answer, where the document sometimes fires more events than it needs to.
Anyway, this method lets you replace annoying code which looks like this:
someTextBox.getDocument().addDocumentListener(new DocumentListener() {
@Override
public void insertUpdate(Docum...
Why are Perl 5's function prototypes bad?
...wn syntactic sugar. For example the Moose framework uses them to emulate a more typical OO syntax.
This is very useful but prototypes are very limited:
They have to be visible at compile-time.
They can be bypassed.
Propagating context to arguments can cause unexpected behavior.
They can make it d...
Insert line break inside placeholder attribute of a textarea?
...ke the placeholder effect using javascript, but i was hoping for something more simple
– amosrivera
Sep 5 '11 at 23:09
2
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Round to at most 2 decimal places (only if necessary)
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How to generate random number in Bash?
...414 I'm curious to "marginally", do you have a source where I can find out more about this?
– PascalVKooten
May 26 '14 at 6:27
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How to update a value, given a key in a hashmap?
...e hows its the most robust and scalable. An atomicinteger instead is much more scalable.
– John Vint
Nov 11 '10 at 19:33
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Can't operator == be applied to generic types in C#?
...iler can't make that assumption.
However, this will compile because it is more explicit:
bool Compare<T>(T x, T y) where T : class
{
return x == y;
}
Follow up to additional question, "But, in case I'm using a reference type, would the the == operator use the predefined...
How to install packages offline?
...rchived into similar looking tarballs by hand. I do it a lot when I want a more recent (less stable) version of something. Some packages aren't on PYPI, so same applies to them.
Suppose you have a properly formed Python application in ~/src/myapp. ~/src/myapp/setup.py will have install_requires lis...
Doctrine and composite unique keys
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