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What is the difference between & and && in Java?
... @Michu93: One example would be if the second condition is a function call which has a side effect that you always need. Since side effects should usually be avoided, there will be only rare cases where you need that, and I can't think of a realistic example at the moment.
–...
“Diff” an image using ImageMagick
... as a PNG file, the second one as a PDF.
The resulting diff file displays all pixels which are different in red color. The ones which are unchanged appear white.
Short and sweet.
Note, your images need not be the same type. You can even mix JPEG, TIFF, PNG -- under one condition: the images sho...
How to split a comma-separated string?
...";
List<String> elephantList = Arrays.asList(str.split(","));
Basically the .split() method will split the string according to (in this case) delimiter you are passing and will return an array of strings.
However, you seem to be after a List of Strings rather than an array, so the array mu...
SQL variable to hold list of integers
...an error saying the subquery returned more than one result and that is not allowed. Is there anyway to create a variable that will store an array if IDs from a subquery?
– Rafael Moreira
Jan 28 '16 at 15:24
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How do I remove the passphrase for the SSH key without having to create a new key?
...ch can be left blank to have no passphrase).
If you would like to do it all on one line without prompts do:
$ ssh-keygen -p [-P old_passphrase] [-N new_passphrase] [-f keyfile]
Important: Beware that when executing commands they will typically be logged in your ~/.bash_history file (or similar...
Can I position an element fixed relative to parent? [duplicate]
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oh, hmm... I actually want to mimic a sticky button, when its positioned absolute, when I scroll down, it doesn't sticky ... hmm
– Jiew Meng
Mar 6 '11 at 10:49
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How does Git handle symbolic links?
...ks configuration variable to false, and symlinks would be checked out as small plain text files that contain the link text.
– Jakub Narębski
Jun 5 '09 at 9:42
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Retrieving the COM class factory for component with CLSID {XXXX} failed due to the following error:
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You deserve more than a +1 but +1 is all I have to give
– David
Dec 5 '13 at 14:59
8
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Difference between id and name attributes in HTML
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To put it very informally, id is what your frontend (CSS, JS) works with, while name is what your server receives and can then process. This is basically what Greeso's answer says.
– Saraph
Dec 6 '16 at 8:15...
MySQL INNER JOIN select only one row from second table
...ltiple associated payments in the payments table. I would like to select all users who have payments, but only select their latest payment. I'm trying this SQL but i've never tried nested SQL statements before so I want to know what i'm doing wrong. Appreciate the help
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