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Object-oriented Programming
Designing Objects: Inheritance, Polymorphism, and Delegation
:
Class hierarchies and inheritance
:
Calling up the class hierarchy
Calling up the class hierarchy
In addition to the
SUPER
statement and the
THIS-OBJECT
statement, two other ABL elements allow you to access objects in the class hierarchy, the
SUPER
system reference and the
THIS-OBJECT
system reference.
In this section:
SUPER system reference
THIS-OBJECT system reference
