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About this eBook THROUGHOUT THE HISTORY of software engineering, the methodology used to write computer programs has undergone several paradigm shifts, each building on the foundation of the former by increasing code organization and decreasing complexity. This book takes you through these same paradigm shifts. The beginning chapters take you through sequential programming structure in which statements are written in the order in which they are executed. The problem with this model is that complexity increases exponentially as the requirements increase. To reduce this complexity, code blocks are moved into methods, creating a structured programming model. This allows you to call the same code block from multiple locations within a program, without duplicating code. Even with this construct, however, programs quickly become unwieldy and require further abstraction. Object-oriented programming, discussed in Chapter 5, was the response. In subsequent chapters, you will learn about additional methodologies, such as interface-based programming, LINQ (and the transformation it makes to collection APIs), and, eventually, rudimentary forms of declarative programming (in Chapter 17) via attributes. This book has three main functions. It provides comprehensive coverage of the C# language, going beyond a tutorial and offering a foundation upon which you can begin effective software development projects. For readers already familiar with C#, this book provides insight into some of the more complex programming paradigms and provides indepth coverage of the features introduced in the latest version of the language, C# 3.0 with .NET 3.5. It serves as a timeless reference, even after you gain proficiency with the language. The key to successfully learning C# is to start coding as soon as possible. Dont wait until you are an expert in theory; start writing software immediately. As a believer in iterative development, I hope this book enables even a novice programmer to begin writing basic C# code by the end of Chapter 2. A number of topics are not covered in this book. You wont find coverage of topics such as ASP.NET, ADO.NET, smart client development, distributed programming, and so on. Although these topics are relevant to the .NET framework, to do them justice requires books of their own. Fortunately, Addison-Wesleys .NET Development Series provides a wealth of writing on these topics. Reading this book will prepare you to focus on and develop expertise in any of these areas. It focuses on C# and the types within the Base Class Library. |
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