DataTypes in C#

 

Data Types:

Data types in C# are used to store data into memory.

Data can be in any form like numbers, characters, decimal and Boolean etc.

 

Data types in C# are mainly divided into two parts-:

i)                  Value Data Types.

ii)               Reference Data Types.

 

i.                 Value Data Types:

Value Data Types will directly store the variable value in memory.

 

 

 

 

 

 

 

 

 

We will discuss some value data types in details as follows:

 

Alias	Type Name	Range
sbyte	System.Sbyte	-128 to 127
short	System.Int16	-32768 to 32767
Int	System.Int32	-2,147,483,648 to 2,147,483,647
long	System.Int64	-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
byte	System.byte	0 to 255
float	System.Single	float can hold up to 7 decimal digits.
double	System.Double	double can hold up to 15 decimal digits.
decimal	System.Decimal	decimal can hold up to 28 decimal digits.
bool	System.Boolean	True/False

 

 

ii.              Reference Data Types:

àThe Reference Data Types will contain a memory address of variable value because the reference types won’t store the variable value directly in memory.

àThe built-in reference types are string, object.

String: It represents a sequence of characters and its type name is System.String. So, string and String are equivalent.

 

 

 

Example:

string s1 = "Tech"; // creating through string keyword 

String s2 = "Developers"; // creating through String class 

 

Object: The object types is the base class for all the data types in C# and can be assigned values of any other types, value types, reference types, predefined or user-defined types.

Example:

object id= 1;

object name = "Tech";

object exp=2.5