Singleton Pattern

Singleton pattern is focused on creating only one instance of an object in memory, sharable by all classes and threads within the application.

Singleton = global object created by singleton pattern

– private default no-argument constructor (this ensures that no other class is capable of instantiating another version of this class -> effectively final class)
– private static instance of this object (named instance)
– public static method getInstance(), returning the reference to this singleton object

ensuring that only one instance of the object exists throughout the Java Virtual Machine.

Last update 22.09.2019.
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