Data Types in Java

Primitive data types: There are 8 primitive data types. i.e. boolean, byte, char, short, int, long, float, double.

Non-primitive data types: The non-primitive data types are String, Arrays and user define Classes and Interfaces.

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

Data type Casting or Type Conversion: There are two type of data type casting. Either implicitly or explicitly. Click here to read in details.

• Implicit Data type Casting: This type casting occurs while we want to convert small data type to big data type for example in to long. This type of casting happens automatically.
• Explicit Data type Casting: This type casting occurs while we want to convert big data type to small data type for example long to int.

Related Tutorials:

• Type Casting in Java
• Data Type Casting In Java
• Object Type Casting In Java