SAP OBJECT REFERENCE TYPE documentation, setup help and example usage

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Object References
Object references can point to instances of
classes . The static type of their reference variables is either a class or an interface. You can use both types to generate objects with the statement CREATE OBJECT .

Class reference variables allow access to all visible components of a class.

Interface reference variables restrict the view of the interface components of a class.

Object references are always heap references .

Note
For more information, see Object References .