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“Beginning Visual C# 2005 Express Edition Video Series” - page 17 / 73

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$60,000 more than a Hyundai. This is known as Polymorphism, meaning that even though there are different objects, you can interact with them the same way because they both derive from the ideal car.

So, when defined in this way, I hope you can begin to see the value of looking at software the way we analyze the world around us.

For this lesson, we'll focus on the most basic building block of OO programming, and that is the Class. A class is simply a blueprint. The Class defines the fields, properties, methods and events that an object will have.

Fields? Properties? Methods? Don’t worry … we’ll talk about what these are in a moment.

A class is a blueprint only; its only job is to define what data it should store (the variables, or rather Fields) and what actions the object should take (the procedures, or rather the Properties and Methods). But since a class is just a blueprint, it is not the ACTUAL object … just a definition of the object’s appearance, behaviors, etc.

Supplemental Readings for the Express Edition Videos Copyright © 2005 LearnVisualStudio.NET

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