Java BigDecimal计算比较

public static void main(String[] args) {
        BigDecimal b1 = new BigDecimal(10);
        BigDecimal b2 = new BigDecimal(2);
        BigDecimal b3 = new BigDecimal(10);
        
        System.out.println("相乘="+b1.multiply(b2));
        System.out.println("相除="+b1.divide(b2));
        System.out.println("相加="+b1.add(b2));
        System.out.println("相减="+b1.subtract(b2));
        
        System.out.println("b2小于b1="+(b2.compareTo(b1) == -1));
        System.out.println("b1等于b3="+(b1.compareTo(b3) == 0));
        System.out.println("b1大于b2="+(b1.compareTo(b2) == 1));
        System.out.println("b1大于等于b2="+(b1.compareTo(b2) > -1));
        System.out.println("b2小于等于b1="+(b2.compareTo(b1) < 1));
    }