如何将以下throw 语句更改为try catch？

Question

public static String changeF2Y(String amount) throws Exception {
    amount = amount.trim();
    if (!amount.matches(CURRENCY_FEN_REGEX)) {
        throw new Exception("金额格式有误");
    }
    amount = BigDecimal.valueOf(Long.valueOf(amount)).divide(new BigDecimal(100)).toString();
    if(!amount.contains(".")){
        amount = amount + ".00";
    }
    return amount;
}

Answer 1

去掉throws，直接将可能出现异常的地方放置try-catch中。
示例代码：

    public static String changeF2Y(String amount) {
        try{
            amount = amount.trim();
            if (!amount.matches(CURRENCY_FEN_REGEX)) {
                throw new Exception("金额格式有误");
            }
            amount = BigDecimal.valueOf(Long.valueOf(amount)).divide(new BigDecimal(100)).toString();
            if(!amount.contains(".")){
                amount = amount + ".00";
            }
        }catch(Exception e){
            e.printStackTrace();
        }
        return amount;
    }