native Datentypen

Name	Beschreibung
byte	The byte data type is an 8-bit signed two’s complement integer. It has a minimum value of -128 and a maximum value of 127 (inclusive).
short	The short data type is a 16-bit signed two’s complement integer. It has a minimum value of - 32,768 and a maximum value of 32,767 (inclusive).
int	By default, the int data type is a 32-bit signed two’s complement integer, which has a minimum value of -231 and a maximum value of 231-1.
long	The long data type is a 64-bit two’s complement integer. The signed long has a minimum value of $- 2^{63}$ and a maximum value of $2^{63 - 1}$ .
float	The float data type is a single-precision 32-bit IEEE 754 floating point.
double	The double data type is a double-precision 64-bit IEEE 754 floating point.
boolean	The Boolean data type has only two possible values: true and false.
char	The char data type is a single 16-bit Unicode character. It has a minimum value of ‘\u0000’ (or 0) and a maximum value of ‘\uffff’ (or 65,535 inclusive).

Variablentypen

Variablen sind innerhalb geschweifter Klammern ”{}” gültig. Bei gleichem Namen können sie sich nicht überdecken.

final int x;