What are the primitive data types in Java?

Type	Size	Default value	Range or values
byte	8 bit	0	-128 to 127
short	16 bit	0	-32,768 to 32,767
int	32 bit	0	about -2.1 billion to 2.1 billion
long	64 bit	0L	very big whole numbers
float	32 bit	0.0f	decimal, about 7 digits
double	64 bit	0.0	decimal, about 15 digits
char	16 bit	‘\u0000’	one Unicode character
boolean	not defined	false	true or false

public class Main {
    public static void main(String[] args) {
        System.out.println(Integer.MAX_VALUE);
        System.out.println(Long.MAX_VALUE);
        System.out.println((int) Character.MAX_VALUE);
    }
}

Every other type is a reference type. See Java Data Types.

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