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Mod in Java produces negative numbers [duplicate]
... I get -1 in Java. In Python, I get 1 as the result of -1 % 2 .
What do I have to do to get the same behavior in Java with the modulo function?
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Unknown file type MIME?
Do I have to specify a MIME type if the uploaded file has no extension?
In other words is there a default general MIME type?
...
What is your most productive shortcut with Vim?
... a developer) faster with Vim than with any other editor.
I'm using Vim to do some basic stuff and I'm at best 10 times less productive with Vim.
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ReactJS: Modeling Bi-Directional Infinite Scrolling
...ake a <List> component that takes an array of all children. Since we do not render them, it's really cheap to just allocate them and discard them. If 10k allocations is too big, you can instead pass a function that takes a range and return the elements.
<List>
{thousandelements.map(fu...
JComboBox Selection Change Listener?
...tionListener () {
public void actionPerformed(ActionEvent e) {
doSomething();
}
});
@John Calsbeek rightly points out that addItemListener() will work, too. You may get 2 ItemEvents, though, one for the deselection of the previously selected item, and another for the selection of ...
Creating a left-arrow button (like UINavigationBar's “back” style) on a UIToolbar
...is for a black toolbar. I haven't tried much with the blue ones as my app doesn't use that. But from what I know the tool bar won't re-colour it as needed. chris.
– PyjamaSam
Jan 21 '10 at 23:28
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Best way to test exceptions with Assert to ensure they will be thrown
Do you think that this is a good way for testing exceptions? Any suggestions?
9 Answers
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Mixin vs inheritance
...e. But you can argue it's a matter of the role of the class in the overall domain as to whether a mixin is a "primary" class or simply a mixin.
Edit -- just to clarify.
Yes, a mixin can be considered, in today's modern lingo, an Interface with an associated Implementation. It really is just plain, ...
ROW_NUMBER() in MySQL
...ly drop unwanted extra rows in the application layer afterwards on some random basis, but if you have a lot of rows all with the same col3 it can be problematic.
– bobince
Dec 13 '09 at 0:18
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Why is the order in dictionaries and sets arbitrary?
I don't understand how looping over a dictionary or set in python is done by 'arbitrary' order.
6 Answers
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