/**
 * @author BNTang
 */
public class MoneyUtil {
    public static double fenToYuan(Integer fen) {
        if (fen == null) {
            return 0.0;
        }
        
        return BigDecimal.valueOf(fen).divide(new BigDecimal(100)).setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
    }

    public static BigDecimal fenToYuan(BigDecimal fen) {
        if (fen == null) {
            return BigDecimal.ZERO;
        }
        
        return fen.divide(new BigDecimal(100)).setScale(2, BigDecimal.ROUND_HALF_UP);
    }

    public static BigDecimal fenToYuanInt(Integer fen) {
        if (fen == null) {
            return BigDecimal.ZERO;
        }
        
        return BigDecimal.valueOf(fen).divide(new BigDecimal(100)).setScale(2, BigDecimal.ROUND_HALF_UP);
    }


    public static int yuanToFen(Double yuan) {
        if (yuan == null) {
            return 0;
        }
        
        return BigDecimal.valueOf(yuan).multiply(new BigDecimal(100)).intValue();
    }

    public static BigDecimal yuanToFen(BigDecimal yuan) {
        if (yuan == null) {
            return BigDecimal.ZERO;
        }
        
        return yuan.multiply(new BigDecimal(100));
    }

    /**
     * 四舍五入，保留最后两位
     *
     * @param d 需要计算的值
     * @return
     */
    public static Double getTwo(Double d) {
        if (d != null && d != 0) {
            BigDecimal b = new BigDecimal(d);
            return b.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
        } else {
            return 0.0;
        }
    }

    public static Double getTwo(BigDecimal d) {
        if (d != null) {
            return d.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
        } else {
            return 0.0;
        }
    }

    public static Double getNine(Double d, int type) {

        String s = d.toString();
        String[] split = s.split("\\.");
        if (split[1].length() >= 2) {
            if (Integer.valueOf(split[1].charAt(1)) == '9') {
                BigDecimal bg = new BigDecimal(d);
                double v = bg.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
                return v;
            }
        }
        Double a = d;
        if (type == 1) {
            a = d - 0.1;
        }
        String s1 = a.toString();
        String[] split1 = s1.split("\\.");
        String c = split1[0] + "." + split1[1].charAt(0);
        Double aDouble = Double.valueOf(c);
        BigDecimal bg = new BigDecimal(aDouble + 0.09);
        double d3 = bg.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
        
        return d3;
    }
}