C# Language Reference – CBrennan Online

C# is an object orientated language created by Microsoft. Source files are stores as .CS files.

Useful Links

Precedence of Operators Description of the order in which operators are evaluation (for example * is execute before +)

Additional Namespaces

Additional namespaces can be added with the using directive. This will allow classes in other namespaces to be called without additional references. For example:

using System; Console.WriteLine("Hello World");

Is a short way of saying:

System.Console.WriteLine("Hello World!");

Variable Types

C# variables are made of of both Value Types and Reference Types. Value Types are stored in memory as a data value and Reference Types are stored in memory as a reference or pointer.

Reference Types

Type	Name	Declaration Examples	Description
array[]	n/a	`int[] scores; int[] scores = new int[3]; int[] scores = {1, 4, 6};`	A sequence of values
string	String	`string message; string message = "Hello";`	A sequence of characters
object	Object	`Car holden = new Car();`	An instance of a class, derived from the base object Object
dynamic	n/a	`dynamic d = 15;`	Can store any type
pointer*	n/a	`int* addr;`	Stores memory address