Computer scienceFundamentalsEssentialsSoftware constructionDesign patternsCreational patterns

Singleton

Way to implement pattern

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What is the most common way to implement the singleton pattern?

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create a simple factory method that will supply application with objects

create an interface for a step-by-step object creation

create a method that will consist of clone() method for a simple object creation through copying existing ones

create a getInstance() method that contains a simple condition which checks for presence of an object instance

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