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Java synchronized method lock on object, or method?
...is works because threads have their own stack, but share instance members, including any declared locking object(s).
– theRiley
Sep 14 at 0:21
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How to reference style attributes from a drawable?
...order to make your theme you need to:
Create one XML drawable per theme.
Include the needed color into you drawable directly with the @color tag or #RGB format.
Make an attribute for your drawable in attrs.xml.
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- Attr...
Find XOR of all numbers in a given range
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@PenchoIlchev Whether or not it includes 0 is kind of moot -- (n^0)==n
– FatalError
May 20 '12 at 4:03
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Writing a dict to txt file and reading it back?
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Great code if your values are not too long. My dictionary included multiple long strings which just got cut off with '...'
– Anne
Sep 14 '18 at 8:05
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HTTP vs HTTPS performance
...ts to as few as possible - by combining resources where possible (e.g. .js include files, CSS) and encouraging client-side caching
Reduce the number of page loads, e.g. by loading data not required into the page (perhaps in a hidden HTML element) and then showing it using client-script.
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How to wrap text in LaTeX tables?
...the cell position: \makecell{A \\ B}.
Before doing that, you also need to include package makecell.
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WHERE vs HAVING
...tant distinction; rows that are
eliminated by a WHERE clause will not be included in the group. This
could change the calculated values which, in turn(=as a result) could affect which
groups are filtered based on the use of those values in the HAVING
clause.
And continues,
HAVING is so...
Can I use __init__.py to define global variables?
...py:
from mypackage.constants import *
Still, this doesn't automatically include the constants in the namespaces of the package modules. Each of the modules in the package will still have to import constants explicitly either from mypackage or from mypackage.constants.
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Programmatically shut down Spring Boot application
...leasing all resources
and locks that the implementation might hold. This includes destroying
all cached singleton beans. Note: Does not invoke close on a parent
context; parent contexts have their own, independent lifecycle.
This method can be called multiple times without side effects:
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How to play with Control.Monad.Writer in haskell?
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The printed copy of the book is correct instead. It includes a paragraph explaining that writer is used in place of Writer as the latter, the value ctor, is not exported by the module, whereas the former is, and it can be used to create the same value you would create with the...