java 兆转kb 例子

public static void main(String[] args) {
        String mb = "10";
        String kbb = "1024";
        String kbbv = "1024";
        BigDecimal bigDecimal = new BigDecimal(mb);
        BigDecimal bigDecimalkbb = new BigDecimal(kbb);
        BigDecimal bigDecimalkbbv = new BigDecimal(kbbv);
        BigDecimal multiply = bigDecimal.multiply(bigDecimalkbb);
        BigDecimal multiply1 = bigDecimalkbbv.multiply(multiply);
        System.out.println("multiply1 = " + multiply1);
        double v = 10*1024*1024;
        //110485700
        System.out.println("v =" + v);
}