java 7, jdk 7

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public class UnderscoreNumericLiterals {

    public static void main(String[] args) {
        long ccNumber = 1234_5678_9012_3456L;
        long ssn = 999_99_9999L;
        float pi =     3.14_15F;
        long hexadecimalBytes = 0xFF_EC_DE_5E;
        long hexadecimalWords = 0xCAFE_BABE;
        long maxOfLong = 0x7fff_ffff_ffff_ffffL;
        byte byteInBinary = 0b0010_0101;
        long longInBinary = 0b11010010_01101001_10010100_10010010;
        int add = 12_3 + 3_2_1;
        System.out.println("ccNumber="+ccNumber);
        System.out.println("ssn="+ssn);
        System.out.println("pi="+pi);
        System.out.println("hexadecimalBytes="+hexadecimalBytes);
        System.out.println("hexadecimalWords="+hexadecimalWords);
        System.out.println("maxOfLong="+maxOfLong);
        System.out.println("byteInBinary="+byteInBinary);
        System.out.println("longInBinary="+longInBinary);
        System.out.println("add="+add);
    }

}