Publicis Sapient
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Frage im Vorstellungsgespräch bei Publicis Sapient
what is singleton design pattern, what are immutable classes.
Antwort im Vorstellungsgespräch
Anonym
18. Aug. 2017
An immutable object is initialized by its constuctor only, while a singleton is instantiated by a static method, restricts the instantiation of a class to one object. This is useful when exactly one object is needed to coordinate actions across the system
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