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The singleton is a design pattern to ensure that exactly one application-wide instance of a particular class exists.

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Classes to help transform "How hard is it to …?" questions into replies like "It's really ha...

end end Singleton pros: The only public interface is the run method. Some other interface (such as the new method) is removed. … Singleton cons: It's probably not needed, if I remove the include, it still works. People don't like singletons. To singleton, or not to singleton. That is the question. …
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