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Where does Java's String constant pool live, the heap or the stack?
...aded in the VM, the string constants will get copied to the heap, to a VM-wide string pool (in the permgen, as Stephen C said), since equal string literals in different classes have to be the same String object (by the JLS).
– Paŭlo Ebermann
Feb 7 '11 at 14:24...
Can I change the root EBS device of my amazon EC2 instance?
... Neither /dev/sda nor /dev/sda1 worked for me, but /dev/xvda did.
– bhspencer
Feb 5 '15 at 14:37
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CSS image resize percentage of itself?
...ust want to shrink the image by half by resizing it to 50%. But applying width: 50%; will resize the image to be 50% of the container element (the parent element which maybe the <body> for example).
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How to select all records from one table that do not exist in another table?
...l, ok i only want that are null. This way you now have all rows in A that didn't have a match In B
– Muhammad Umer
Mar 6 '18 at 18:02
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How can I delete Docker's images?
...containers. It will not be possible to restore them!
This solution is provided by Techoverflow.net.
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Have nginx access_log and error_log log to STDOUT and STDERR of master process
...ng that this is deliberate and by intent: bugzilla.kernel.org/show_bug.cgi?id=1360 -- thus, while this answer is sufficient in some cases, it doesn't fully cover the range of possible failures.
– Charles Duffy
Oct 21 '14 at 22:53
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Emulating a do-while loop in Bash
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Never said anything different, only that true is not a built-in in Bash. It's a program usually found in /bin.
– Fleshgrinder
Feb 12 at 22:07
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Rails: Default sort order for a rails model?
...d be chained together but only resulting in 1 actual database query, to avoid performance problems from executing 7 separate queries.
You can use a passed in parameter such as a date or a user_id (something that will change at run-time and so will need that 'lazy evaluation', with a lambda, like th...
Can I change the viewport meta tag in mobile safari on the fly?
...t.querySelector("meta[name=viewport]");
viewport.setAttribute('content', 'width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0');
Just change the parts you need and Mobile Safari will respect the new settings.
Update:
If you don't already have the meta viewport tag in the so...
window.close and self.close do not close the window in Chrome
...ey/Tampermonkey script; Greasemonkey and Tampermonkey could reasonably provide this functionality in their API (essentially packaging the extension work for you).
Consider making a feature request.
The hacky workarounds:
Chrome is currently was vulnerable to the "self redirection" exploit. So...