[JAVA] 자료형 정리

타입	비트	범위
byte	8bits = 1byte	-2^7 ~ 2^7-1 (-128 ~ 127)
short	16bits = 2byte	-2^15 ~ 2^15-1 (-32,768 ~ 32,767)
int	32bits = 4byte	-2^31 ~ 2^31-1 (-2,147,483,648 ~ 2,147,483,647)
long	64bits = 8byte	-2^63 ~ 2^63-1 (-9,223,372,036,854,775,808 ~ 9,223,372,036,854,775,807)
float	32bits = 4byte	0x0.000002P-126f ~ 0x1.fffffeP+127f -3.4e38 ~ 3.4e38
double	64bits = 8byte	0x0.0000000000001P-1022 ~ 0X1.fffffffffffffP+1023 -1.7e308 ~ 1.7e308
char	16bits	\u0000 ~\uffff (0 ~ 2^15-1) unsigned 0~65,535
boolean	1bit	true or false