C# 7 Quick Syntax Reference: A Pocket Guide to the Language, APIs, and Library

© Mikael Olsson 2018

Mikael OlssonC# 7 Quick Syntax Referencehttps://doi.org/10.1007/978-1-4842-3817-2_3

3. Variables

Mikael Olsson¹ 

(1)

Hammarland, Länsi-Suomi, Finland

 

Variables are used for storing data in memory during program execution.

Data Types

Depending on what data you need to store, there are several different kinds of data types. The simple types in C# consist of four signed integer types and four unsigned, three floating-point types, as well as char and bool.

Data Type	Size (Bits)	Description
sbyte short int long	8 16 32 64	Signed integers
byte ushort uint ulong	8 16 32 64	Unsigned integers
float double decimal	32 64 128	Floating-point numbers
char	16	Unicode character
bool	4	Boolean value

Declaration

In C#, a variable must be declared ...