Java Basic data types

There are 8 basic data types in Java, such as the following:

• Shaping: int, byte,short, long
• Float type: float, double
• Boolean Type: Boolean
• Character type: Char

Table one basic data type

Type	Number of bytes	Number of digits	Range of values	Example
Byte	1	8	An integer of -27~27-1	-128,54,127
Short	2	16	An integer of -215~215-1	1348,6543
Int	4	32	An integer of -231~231-1	0,-1000,345678
Long	8	64	An integer of -263~263-1	987657897,-12
Float	4	32	An integer of -231~231	23.978,87f
Double	8	64	An integer of -263~263	2.0231,0.435d
Char	2	16	An integer of -215~215	400,a,z,x,-23
Boolean	1	8	True,false	True

Note: (1), Java does not have an unsigned type (unsigned).

(2), double quotation marks indicate a string, which is an object type of Java string, not a data type.

(3), a Boolean type has only two values, and the shaping value and the Boolean value cannot be converted to each other.

Java Basic data types