csds java midterm primitive types

widest to narrowest

double

• 64 bits

• most precise decimals

float

• 32 bits

• less precise decimals

long

• 64 bits

• very large integers

int

• 32 bits

• integers, counting digits

char

• 16 bits

• characters

• always requires explicit typecast (can’t have negative values)

short

• 16 bits

• smaller integers

byte

• 8 bits

• smallest integers

boolean

• 1 bit

• true/false

• cannot be typecast to any other primitive type