Underscores in numeric literals

I’ve often found myself adding javadoc to make a constant declaration clearer. This makes them somewhat clearer which is definitely helpful.

public class UnderScoredLiterals {

    public static void main(String[] args) {

        long creditCardNumber = 1234_5678_9012_3456L;
        long socialSecurityNumber = 999_99_9999L;
        float pi = 3.14_15F;
        long hexBytes = 0xFF_EC_DE_5E;
        long hexWords = 0xCAFE_BABE;
        long maxLong = 0x7fff_ffff_ffff_ffffL;
        byte nybbles = 0b0010_0101;
        long bytes = 0b11010010_01101001_10010100_10010010;

    }

}