Java Garage

Integer Types

The Java integer types are byte, short, int, and long.

byte

Occupies 8 bits or 1 byte, which is:

-2⁷ to 2⁷-1 or -128 to 127

Default value of 0

Example: -17, 123

short

Occupies 16 bits or 2 bytes, which is:

-2¹⁵ to 2¹⁵-1 or -32,768 to 32,767

Default value of 0

Example: 31,098, -9001

int

Occupies 32 bits or 4 bytes, which is:

-2³¹ to 2³¹-1 or -2,147,483,648 to 2,147,483,647

Default value of 0

Example: 50, 2147000000, -53000

The int is probably the most commonly used integral type in Java. That's because it is often not worth trying to save memory space by using a smaller type, such as a byte. Here's why: when you perform a comparison operation or an arithmetic operation with a byte, it gets promoted to an int anyway by the runtime, then the ...