These are short programs, data types and helper classes reviewing some basic features of OOP (Object Oriented Programming). You should already know about these features.

The files are:

• ObjectClasses: program
• Animal: data type used in ObjectClasses

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• ObjectData: program
• Utilities: helper class used in ObjectData and ObjectClasses

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• RectangleArea: program
• Rectangle: data type used in RectangleArea

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• ShowGrades: program
• Student: data type used in ShowGrades