Data Types in Java

Data types define different size and values that can be stored in the memory and according to that we can apply certain operations.

Types:

1. Primitive data types: This includes char, float, int, boolean, byte short, long, double.
2. Non-primitive data types: This includes Classes, Interfaces, Arrays.

Primitive Data Type:

This is the most basics ones. There are 8 types of primitive data types:

• boolean data type
• char data type
• byte data type
• float data type
• long data type
• int data type
• double data type
• short data type

Data Type	Default Value	Default size
boolean	false	1 bit
char	'\u0000'	2 byte
byte	0	1 byte
short	0	2 byte
int	0	4 byte
long	0L	8 byte
float	0.0f	4 byte
double	0.0d	8 byte

Non - Primitive Data Type

This contains strings(array of characters), classes and interfaces, these are more complex then primitive data types.