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Advanced PowerBuilder Class
A class is a software construct that defines the data (instance variables) and services of an object. A class in itself is not an object. A class is a template, which defines how an object looks and behaves, when the object is created or instantiated from the specification declared by the class. You obtain concrete objects by instantiating a previously defined class. You can instantiate many objects from one class definition, just as you can construct many houses from a single architect's drawing.
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