Chapter 2

C# Basics

Now that you understand more about what C# can do, you will want to learn how to use it. This chapter gives you a good start in that direction by providing you with a basic knowledge of the fundamentals of C# programming, which is built on in subsequent chapters. The main topics covered are:

  • Declaring variables
  • Initialization and scope of variables
  • Predefined C# data types
  • Dictating the flow of execution within a C# program using loops and conditional statements
  • Enumerations
  • Namespaces
  • The Main() method
  • Basic command-line C# compiler options
  • Using System.Console to perform console I/O
  • Using comments and documentation features
  • Preprocessor directives
  • Guidelines and conventions for good programming in C#

By the end of this chapter, you will know enough C# to write simple programs, though without using inheritance or other object-oriented features, which are covered in later chapters.

Before We Start

As already mentioned, C# is an object-oriented language. Throughout this chapter and later chapters, we assume that you have a good grasp of the concepts behind object-oriented (OO) programming. In other words, we expect that you understand what we mean by classes, objects, interfaces, and inheritance. If you have programmed in C++ or Java before, you should have a pretty good grounding in object-oriented programming (OOP). However, if you do not have a background in OOP, you may find it helpful to familiarize yourself with OOP basics before continuing.

In this ...

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