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Is Meyers' implementation of the Singleton pattern thread safe?
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What is the rationale behind having companion objects in Scala?
...encapsulate a delegator for the life of JVM. For example, writing a simple HTTP client library in Scala where you can encapsulate an underlying Java implementation based delegator and let consumers of your API live in pure world.
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How do I link a JavaScript file to a HTML file?
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First you need to download JQuery library from http://jquery.com/ then
load the jquery library the following way within your html head tags
then you can test whether the jquery is working by coding your jquery code after the jquery loading script
<!DOCTYPE html>
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Programmatically change log level in Log4j2
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I found a good answer here: https://garygregory.wordpress.com/2016/01/11/changing-log-levels-in-log4j2/
You can use org.apache.logging.log4j.core.config.Configurator to set the level for a specific logger.
Logger logger = LogManager.getLogger(Test.cla...
Why do I need 'b' to encode a string with Base64?
... string binary.
What version of Python do you use? 2.x or 3.x?
Edit: See http://docs.python.org/release/3.0.1/whatsnew/3.0.html#text-vs-data-instead-of-unicode-vs-8-bit for the gory details of strings in Python 3.x
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Why not use HTTPS for everything?
...as setting up a server, and had the SSL certificate(s), why wouldn't I use HTTPS for the entire site instead of just for purchases/logins? I would think it would make more sense just to encrypt the entire site, and protect the user entirely. It would prevent problems such as deciding what has to be ...
String variable interpolation Java [duplicate]
...mat() method. The outcome is the same, but the methods are different.
See http://en.wikipedia.org/wiki/Variable_interpolation
Edit As of 2019, JEP 326 (Raw String Literals) was withdrawn and superseeded by JEP 355 (Text Blocks). The latter tries to introduce "Text Blocks" into the language:
A ...
A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception pro
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Set operations (union, intersection) on Swift array?
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Greenlet Vs. Threads
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