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What is the difference between 'E', 'T', and '?' for Java generics?
...(? someType) {...} // error. Must use type params here
or
public class MyGeneric ? { // error
public ? getFoo() { ... } // error
...
}
It gets more confusing where they overlap. For example:
List<T> fooList; // A list which will be of type T, when T is chosen.
...
What's the best way to check if a String represents an integer in Java?
...@MartinCarney I modified it and benchmarked pattern compilation. Obviously my CPU/JIT is faster, but if I interpolate it back, the compilation time is 336.
– tedder42
Oct 8 '14 at 23:26
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Is there a more elegant way of adding an item to a Dictionary safely?
...n, and a set
operation creates a new element with
the specified key.
My emphasis
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What does an Asterisk (*) do in a CSS selector?
...rtion of the DOM.
For example, if I want apply margin to every element on my entire page you can use:
* {
margin: 10px;
}
You can also use this within sub-selections, for example the following would add a margin to all elements within a paragraph tag:
p * {
margin: 10px;
}
Your exampl...
Spring classpath prefix difference
... there is one more interesting difference between them. See my question also : stackoverflow.com/questions/16985770/…
– Eugene
Jun 8 '13 at 18:48
29
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Why would a JavaScript variable start with a dollar sign? [duplicate]
...JQ is a jQuery object for it
}
Well that's a little confusing! In one of my bits of code, email is the jQuery object and emailElement is the DOM element, but in the other, email is the DOM element and emailJQ is the jQuery object.
There was no consistency and I kept mixing them up. Plus it was a ...
How does TransactionScope roll back transactions?
...a number of objects into a database and then checking to make sure whether my method retrieves those objects.
2 Answers
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Using str_replace so that it only acts on the first match?
...generic solution due to nasty escaping issues.
– Jeremy Kauffman
Jul 9 '11 at 0:39
2
Far too ofte...
How to show vertical line to wrap the line in Vim?
...ich will highlight anything over 80 chars with red.
I put that command in my python.vim and ruby.vim under ~/.vim/after/ftplugin/.
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What should go into an .h file?
...ave precise meanings in C++, they do not have precise meanings in English. My answer was written in the latter.
– Amber
Dec 22 '09 at 21:53
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