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When do I need to use AtomicBoolean in Java?
How I can use AtomicBoolean and what is that class for?
5 Answers
5
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What to use as an initial version? [closed]
...ersion 1.0.0. As soon as I have some stuff together, I release it as 1.0.0 and move on with 1.1.0.
12 Answers
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Unusual shape of a textarea?
...tenteditable
As proposed by @Getz, you can use a div with contenteditable and then shape it with some div on it. Here is an example, with two blocks which float at the upper left and the upper right of the main div:
As you can see, you have to play a little with the borders if you want the same ...
Delete last commit in bitbucket
I made a mistake and I don't know how to delete my latest push in the repository. I pull the latest updates of the app but it has conflicts and I push it to repository.
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Best practices/performance: mixing StringBuilder.append with String.concat
I'm trying to understand what the best practice is and why for concatenating string literals and variables for different cases. For instance, if I have code like this
...
How do I see all foreign keys to a table or column?
...HEMA.KEY_COLUMN_USAGE
WHERE
REFERENCED_TABLE_SCHEMA = '<database>' AND
REFERENCED_TABLE_NAME = '<table>';
For a Column:
SELECT
TABLE_NAME,COLUMN_NAME,CONSTRAINT_NAME, REFERENCED_TABLE_NAME,REFERENCED_COLUMN_NAME
FROM
INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE
REFERENCED_TABL...
How to list the size of each file and directory and sort by descending size in Bash?
...
Simply navigate to directory and run following command:
du -a --max-depth=1 | sort -n
OR add -h for human readable sizes and -r to print bigger directories/files first.
du -a -h --max-depth=1 | sort -hr
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Why doesn't Java allow overriding of static methods?
...nce of a class. The point of polymorphism is that you can subclass a class and the objects implementing those subclasses will have different behaviors for the same methods defined in the superclass (and overridden in the subclasses). A static method is not associated with any instance of a class so ...
html5 - canvas element - Multiple layers
...ver, you could layer multiple <canvas> elements on top of each other and accomplish something similar.
<div style="position: relative;">
<canvas id="layer1" width="100" height="100"
style="position: absolute; left: 0; top: 0; z-index: 0;"></canvas>
<canvas id="layer...
Understanding the main method of python [duplicate]
...ed" % __file__)
Using this convention one can have a file define classes and functions for use in other programs, and also include code to evaluate only when the file is called as a standalone script.
It's important to understand that all of the code above the if __name__ line is being executed, ...