Java Basic data types

There are eight Java basic data types, roughly divided into three categories:

First Class (character type): Char

Class II (Boolean type): Boolean

Class III (numeric type): integer type: byte,short,int,long/floating-point type: float,double

Comparison of the basic data types

Basic type	Packing class	Minimum value	Maximum Value	Number of bytes	Number of binary digits
Byte	Java.lang.Byte	-128	127	1	8
Short	Java.lang.Short	-32768	32767	2	16
Int	Java.lang.Integer	-2147483648	2147483647	4	32
Long	Java.lang.Long	-9.22337E+18	9.22337E+18	8	64
Float	Java.lang.Float	1.40E-45	3.40E+38	4	32
Double	Java.lang.Double	4.9E-324	1.7976931348623157E308	8	64
Char	Java.lang.Character	0	65535	2	16

Java Basic data types