java中金额转换分转元 元转分

/**
 * 元转分，确保price保留两位有效数字
 *
 * @return
 */
public static int changeY2F(double price) {
    DecimalFormat df = new DecimalFormat("#.00");
    price = Double.valueOf(df.format(price));
    int money = (int) (price * 100);
    return money;
}

/**
 * 分转元，转换为bigDecimal在toString
 *
 * @return
 */
public static String changeF2Y(int price) {
    return BigDecimal.valueOf(Long.valueOf(price)).divide(new BigDecimal(100)).toString();
}