Question

我需要将价格转换为整数，例如：

（String）12,000到（int）12000
245.00至（int）245

我该怎么做？

Answer 1

使用NumberFormat.getCurrencyInstance()：

NumberFormat nf = NumberFormat.getCurrencyInstance(); // Use Locale?
int[] ints = new int[strings.length];
for(int  i = 0 ; i < strings.length ; ++i) {
    ints[i] = nf.parse(strings[i]).intValue();
}

Answer 2

public static int convertDoubleToInt(double d){
    //rounds off to the nearest 100
    long l = Math.round(d);
    int i = (int) l;
    return i;
}

public static double convertCommaDoubleToInt(String s) throws ParseException{
    NumberFormat nf = NumberFormat.getInstance(Locale.US);
    Number number = nf.parse(s);
    return number.doubleValue();
}

public static void main(String[] args) throws ParseException {

    String[] moneys = {"12,000", "245.76"};

    for(String n: moneys){
        Double d = convertCommaDoubleToInt(n);//first remove the comma, if there
        System.out.println(convertDoubleToInt(d)); //then convert double into int
    }


}

Answer 3

比其他解决方案短得多：

public static int parseStringToInt(String s){
        s = s.replaceAll(",", ""); //remove commas
        return (int)Math.round(Double.parseDouble(s)); //return rounded double cast to int
    }

像这样使用它：

public static void main(String[] args) {
        String[] m = {"12,000", "245.67"};
        for (String s : m){
            System.out.println(parseStringToInt(s));
        }
    }

将价格字符串转换为整数

3 个答案: