Value range and storage requirements of basic data types in Java

 

Value range and storage requirements of basic data types in Java

Type	Value Range	Storage Requirements	Remarks
Byte	-128 to 127	1 byte	-27 to 27-1
Short	-32 768 to 32 767	2 bytes	-215 to 215-1
Int	-2 147 483 648 to 2 147 483 647	4 bytes	-231 to 231-1
Long	-9 223 372 036 854 775 808 to 9 223 372 036 854 775 807	8 bytes	-263 to 263-1
Float	About ± 3. 402 823 47E + 38f (6 to 7 digits)	4 bytes	E + 38 indicates that the value is multiplied by the power 38 of 10, and F indicates that the value is of the float type.
Double	About ± 1. 797 693 134 862 315 70e + 308 (15 digits valid)	8 bytes
Char	0 to 65535	2 bytes	65536
Boolean	True or false	1 byte	It occupies 1/8 bytes, that is, 1 bit. However, its size is not explicitly specified.