# 用Java把數字加上千分位符號

參數是String

protected String getNumbericValue(String str) {
    String numbericVal = "";
    try {
        Double doubleVal = Double.valueOf(str);
        numbericVal = DecimalFormat.getNumberInstance().format(doubleVal);
    } catch (NumberFormatException e) {
        logger.error("千份位數字轉型錯誤:"+str);
    }
    return numbericVal;
}

參數是Integer

public static String getNumbericValue(Integer num) {
    String numbericVal = "";
    DecimalFormat df = new DecimalFormat("#,###"); 
    numbericVal = df.format(num.longValue());
    return numbericVal;
}

###### tags: java