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What is the memory consumption of an object in Java?
...estion to answer:
A JVM is free to store data any way it pleases internally, big or little endian, with any amount of padding or overhead, though primitives must behave as if they had the official sizes.
For example, the JVM or native compiler might decide to store a boolean[] in 64-bit long c...
How to remove focus around buttons on click
My buttons all have a highlight around them after I click them. This is in Chrome.
38 Answers
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Design by contract using assertions or exceptions? [closed]
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Personally I prefer asserts for design by contract approaches. Exceptions are defensive and are doing the argument checking inside the function. Also, dbc preconditions don't say "I won't work if you use values out of the working r...
How do I mount a remote Linux folder in Windows through SSH? [closed]
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Back in 2002, Novell developed some software called NetDrive that can map a WebDAV, FTP, SFTP, etc. share to a windows drive letter. It is now abandonware, so it's no longer maintained (and not available on the Novell website), but it's free to use. I found quite a few a...
How do I “un-revert” a reverted Git commit?
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Please note this will remove all changes in working tree and index. Use git stash to save any changes you don't wan't to lose.
– zpon
Aug 30 '16 at 5:37
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Reset select2 value and show placeholder
... placeholder: "Select a customer",
initSelection: function(element, callback) {
}
});
To reset the select2
$("#customers_select").select2("val", "");
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How to set my default shell on Mac?
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Here's another way to do it:
Assuming you installed it with MacPorts, which can be done by doing:
sudo port install fish
Your shell will be located in /opt/local/bin/fish.
You need to tell OSX that this is a valid shell. To do that, add this path to the end of the /...
Creating an object: with or without `new` [duplicate]
...mplest way to create an object, and is just the same as when you write int x = 0;
The second creates an object with dynamic storage duration and allows two things:
Fine control over the lifetime of the object, since it does not go out of scope automatically; you must destroy it explicitly using t...
Capistrano error tar: This does not look like a tar archive
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I had the same issue, until I realized I was pulling the nonexistent branch from git.
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Storing sex (gender) in database
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I'd call the column "gender".
Data Type Bytes Taken Number/Range of Values
------------------------------------------------
TinyINT 1 255 (zero to 255)
INT 4 - 2,147,483,...