Eight data type of the data

Types of	name	Occupancy size	Defaults	Ranges
Integer	byte	1	0	-128~127
Integer	short	2	0	-32768~32767
Integer	int	4	0	-D14 ~ 2147483647
Integer	long	8	0	Power of -2 to 63 -1 2 63 th
Floating-point type - single precision	float	4	0.0	3.402823e+38~1.401298e-45
Floating-point type - single precision	double	8	0.0	1.797693e + 308 ~ 4.9000000e-45
Character	char	2	air	\ U0000 ~ \ uFFFF
Boolean	boolean		false	false/true
Special type - Object	String		null