Java Data type (primitive & non-primitive)

Primitive Data Types

Data Type	Size	Description
byte	1 byte (8-bit)	-128 to 127
short	2 bytes	-32,768 to 32,767
int	4 bytes	-2,147,483.648 to 2,147,483,647
long	8 bytes	-9,223.372,036.854,775.808 to 9,223.372,036,854,775,808
float	4 bytes	6 to 7 decimal digits
double	8 bytes	15 decimal digits
boolean	1 byte	true or false
char	2 bytes	a single character or letter

Non-primitive Data Types

Non-primitive data types don't store value but store a reference of the value. 

* reference type - Array, Variable, Class, Interface

Reference

Hackerrank (https://www.hackerrank.com/)

w3schools (www.w3schools.com)