When should you use the singleton pattern instead of a static class? [closed]

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  • Singletons can implement interfaces and inherit from other classes.
  • Singletons can be lazy loaded. Only when it is actually needed. That’s very handy if the initialisation includes expensive resource loading or database connections.
  • Singletons offer an actual object.
  • Singletons can be extended into a factory. The object management behind the scenes is abstract so it’s better maintainable and results in better code.

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