C++ Data Types-int, float, char, double, bool

C++ has many data types like int, char, float, bool, etc.

Integer data types in C++

Integer data is a numeric value with no decimal point or fraction. It includes both positive and negative values. The minus sign – is used to indicate a negative value. If no sign is used, the value is positive by default. E.g. 10,470 and 40.

Types of integers

C++ provides different types of integer data.

Data Type	Size in Byte
int	2 bytes
short	2 bytes
unsigned int	2 bytes
long	4 bytes
unsigned long	4 bytes

Syntax of integers

int salary = 53000;

       cout << salary;            

Float data type

The float data type is used to store fractional data. It provides an accuracy of 6 decimal places.

Syntax of float

float temperature = 15.66;

cout<<temperature;

Char data type

Char data type is used to store character value. It takes 1 byte in memory. It is used to represent a letter, number or punctuation mark and a few other symbols.

Syntax of char data

char ch1, ch2, sum;

ch1 = ‘A’;

char =’B’;

cout <<“Characters are:”<<ch1<<ch2;

Bool data type  

The bool data type is used to value whether it is true or false.

Syntax of bool  

bool myboolean = true;

Data Type	Meaning	Size	Description
Int	Integer	2 or 4 bytes	Stores numbers without decimal.
Char	Character	1 byte	Stores single characters.
Double	Double Floating-point	8 bytes	store fractional numbers, sufficient for 15 decimal digits.
Float	Floating-point	4 bytes	Store fractional numbers, sufficient for 7 decimal digits.
Bool	Boolean	1 byte	Store values like true and false.
void	Empty	0	specifies that the function doesn’t return a value
Wchar _ t	Wide character	2	used for Unicode UTF-16 strings