# Starting With Classes Overview

This topic introduces some of the basic syntax and grammar surrounding Object-Oriented Programming in C#. The following C# keywords are introduced.

public
class
static
string
void
return
namespace

This topic will also introduce the following grammars, syntax and language constructs:

Simple class declaration syntax (no members)
Simple class declaration syntax (with static methods)
Method overloading
Method declaration syntax (class methods, with the static keyword)
Parameter declaration (variable declaration) syntax
Class (static) method call syntax (with and without arguments)
main function (entry point of program)
Console output
Simple string concatenation
C# as a case-sensitive language
Single-line, multi-line and XML comments