Numeric Literals
Integer literals can be written in binary, octal, decimal or hexadecimal
representation. The L suffix denotes a long type, otherwise
int is assumed Floating point literals can be written in decimal
or as hexadecimal representation. The suffix d denotes type
double (default), the suffix f denotes
float.
Since Java 7
public class NumericLiterals {
// integer literals
static int bin = 0b10110110;
static int oct = 01234_567;
static int dec = 1_000_000;
static int dec2 = 4________2;
static int hex = 0xcafe_babe;
static long lhex = 0xcafe_babeL;
// floating point literals
static double d1 = 1.0E3d;
static double d2 = .333_333;
static double dhex = 0xcafe.babeP3;
static float f = 1.0E3f;
static float fhex = 0xcafe.babeP3f;
public static void main(String... args) {
System.out.println(bin);
System.out.println(oct);
System.out.println(dec);
System.out.println(dec2);
System.out.println(hex);
System.out.println(lhex);
System.out.println(d1);
System.out.println(d2);
System.out.println(dhex);
System.out.println(f);
System.out.println(fhex);
}
}
This snippet at GitHub