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What is a raw type and why shouldn't we use it?
...ence type that is formed by taking the name of a generic type declaration without an accompanying type argument list.
An array type whose element type is a raw type.
A non-static member type of a raw type R that is not inherited from a superclass or superinterface of R.
Here's an example to ill...
What is the error “Every derived table must have its own alias” in MySQL?
...ts must be given an alias (AS whatever), which can the be used to refer to it in the rest of the outer query.
SELECT ID FROM (
SELECT ID, msisdn FROM (
SELECT * FROM TT2
) AS T
) AS T
In your case, of course, the entire query could be replaced with:
SELECT ID FROM TT2
...
iOS5 Storyboard error: Storyboards are unavailable on iOS 4.3 and prior
I've built a small app using storyboards and it ran great. Just before final testing I decided to try it out to see if it runs on iOS 4.3. I clicked on the gray 5.0 in the project settings and selected 4.3.
...
The difference between fork(), vfork(), exec() and clone()
...good memory management, fork() made a full copy of the parent's memory, so it was pretty expensive. since in many cases a fork() was followed by exec(), which discards the current memory map and creates a new one, it was a needless expense. Nowadays, fork() doesn't copy the memory; it's simply set...
Weird PHP error: 'Can't use function return value in write context'
I'm getting this error and I can't make head or tail of it.
12 Answers
12
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Check if a string is html or not
I have a certain string for which I want to check if it is a html or not. I am using regex for the same but not getting the proper result.
...
String formatting named parameters?
I know it's a really simple question, but I have no idea how to google it.
6 Answers
6...
How does the getView() method work when creating your own custom adapter?
...flater takes your layout XML-files and creates different View-objects from its contents.
2: The adapters are built to reuse Views, when a View is scrolled so that is no longer visible, it can be used for one of the new Views appearing. This reused View is the convertView. If this is null it means...
Remove the last line from a file in Bash
...ion does not exist in GNU sed versions older than 3.95, so you have to use it as a filter with a temporary file:
cp foo.txt foo.txt.tmp
sed '$ d' foo.txt.tmp > foo.txt
rm -f foo.txt.tmp
Of course, in that case you could also use head -n -1 instead of sed.
MacOS:
On Mac OS X (as of 10.7.4), t...
What is the advantage of using abstract classes instead of traits?
What is the advantage of using an abstract class instead of a trait (apart from performance)? It seems like abstract classes can be replaced by traits in most cases.
...