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Simple Class Syntax -- Level Zero Before beginning the tutorial, you must have a clear understanding of a simple SCL class. A CLASS statement enables you to use SCL to create a SAS/AF class and to ...
One of the easiest ways to understand what is meant by ‘object oriented’, is to define what it is not. Before Object Oriented Programming (OOP) programs were written an imperative way ...
The readers that were previously developed in this tutorial will be used to read data that will be used to initialize the items in the List Box. To extend the List Box class, you must write a class to ...
Object-oriented programming allows procedures about objects to be created whose exact type is not known until runtime. For example, a screen cursor may change its shape from an arrow to a line ...
Two of the key concepts in object-oriented programming (OOP) are inheritance and composition. While both can help you reuse code, there are key differences between them.