字符串元轉分

/**
* 將金額從元轉為分
*
* @param amtY
* String
* @return
*/
public static String formatAmtY2F(String amtY) {
if (amtY == null || "".equals(amtY.trim())|| "0".equals(amtY))
return "0";
if (amtY.indexOf(",") != -1) {
amtY = amtY.replace(",", "");
}

amtY=new DecimalFormat("0.00").format(new BigDecimal(amtY));
int index = amtY.indexOf(".");
int len = amtY.length();
StringBuffer amtF = new StringBuffer();
if (index == -1) {
amtF.append(amtY).append("00");
} else if ((len - index) == 1) {
amtF.append(Long.parseLong(amtY.replace(".", ""))).append("00");
} else if ((len - index) == 2) {
amtF.append(Long.parseLong(amtY.replace(".", ""))).append("0");
} else {
amtF.append(Long.parseLong(amtY.replace(".", "")));
}
return amtF.toString();
}