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Introduction to Objects and Classes in C#

In this article Michael introduces us to C#, as well as attempts to demystify the theory behind "Object and Classes" in OO Programming.

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By: Michael Youssef
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September 16, 2003
  1. · Introduction to Objects and Classes in C#
  2. · Introduction
  3. · World's Classes and Objects
  4. · Programmerís Classes and Objects
  5. · Properties and Variables
  6. · Properties
  7. · Reworked
  8. · Creating Objects and Classes
  9. · Conclusion

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Introduction to Objects and Classes in C# - Introduction
(Page 2 of 9 )

OOP stands for Object-Oriented Programming. OOP is relatively a new way to program computer applications. In the past, OOP programmers used to create computer applications using procedural-programming (or structured-programming). But, when OOP solved a lot of the problems of the procedural-programming, most programmers and developers began using OOP languages. In procedural- programming all the program functionality is written in a few modules of code or maybe one module (depending on the program). These modules depend on one another and sometimes changing a line of code requires you to rewrite the whole module again and maybe the whole program. 

In Object-Oriented Programming programmers write independent parts of a program called classes. Each class represents a part of the program functionality and these classes can be assembled to form a program. When you need to change some of the program functionality all you have to do is to replace the target class which may contain the problem that needs change. So, OOP applications are created by the use of classes and these applications can contain any number of classes. This will get us to discuss the Class and Object concept.

Classes and objects

You may find it a little difficult to understand the class and object story; but, I will try to do my best in explaining it. Actually the class and object concept is related to each other. Some beginners don't care about understanding it clearly so I think they will have a hard time learning C#.

Object-Oriented concepts take most of their functionality from the real-life concepts. For example, I will discuss the concept of Classes and Objects of the world first and then you will understand the computer's Classes and Objects before I even write anything about it.

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