May 2002
Intermediate to advanced
416 pages
8h 37m
English
Definition: An action is an individual operation that performs a single task on an element of a model.
When we write object actions, we write the action for an arbitrary object. The target of the action is specified at run time, and is generally held in an object reference variable.
Definition: An object reference is a value that refers to an object.
An object reference is not the object itself.
Figure 7.1 lists syntax for several object and attribute actions, and several examples are shown in Figure 7.2.

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