What data types are available in Java? Number of bytes per base data type

Java data types are divided into: basic data types and reference data types.

Number of bytes for the base data type:

Data type	Bytes	Default value
Byte	1	0
Short	2	0
Int	4	0
Long	8	0
Float	4	0.0f
Double	8	0.0d
Char	2	' \u0000 '
Boolean	4	False

With regard to the Boolean account of a few bytes, there is a divergence of opinions, although Boolean shows a "bit" attribute that is not 0 or 1, but the basic unit of measurement for storage space is bytes, not bits. So the Boolean accounts for at least 1 bytes.
In the JVM specification, a Boolean variable is treated as an int, which is 4 bytes, whereas a Boolean array is treated as a byte array, that is, a Boolean in the boolean array is 1 bytes.

What data types are available in Java? Number of bytes per base data type