How many bytes does int occupy in java?

This is the number of bytes occupied by the basic type memory in units of 8 (the value range is 2 (number of bytes X8- 1)).

1. integer

Value range of digits required for type storage

Byte 1 byte1* 8 (-2 power of 3 1 to 2 power of 31-1)

Short 2 bytes 2 * 8-32768 ~ 32767

Int 4 byte 4*8 (-2 to the 63rd power 2-1)

8 bytes long, 8 * 8- 128 ~ 127

2. Floating-point type

A note on the number of bits required for type storage

Floating-point 4 bytes, 4*8 floating-point values have a suffix f (for example, 3. 14F).

Double 8 bytes 8*8 Floating-point values without suffix f (such as 3. 14) are double by default.

3. Character type

Number of bits required for type storage

Character 2 Byte 2*8

4. Boolean type

Value range of digits required for type storage

Boolean type 1 byte 1*8 false, true