使用将字符串格式更改为NumberFomat，我的例外是不能将给定的对象格式化为数字

Question

 Document document = convertStringToDocument(response.getBody());
 String error = Objects.requireNonNull(document).getElementsByTagName("status").item(0).getTextContent();
 NumberFormat nf = NumberFormat.getInstance(new Locale("sk", "SK"));
 String value = nf.format(Long.toString(Long.parseLong(Objects.requireNonNull(document)
                .getElementsByTagName("paramValue").item(0).getTextContent())/100));//here exception
 List<ValueItem> valueItems = new LinkedList<>();
 ValueItem balance = new ValueItem();
 balance.setKey("balance");
 balance.setName("Баланс");
 balance.setValue(value);
 valueItems.add(balance);
 additionalSuppliersReturn.setValueItems(valueItems);

Answer 1

String str = "1000048.35";
NumberFormat numberFormat = NumberFormat.getNumberInstance(new Locale("sk","SK"));
Number number = new BigDecimal(str);
System.out.println(numberFormat.format(number));

问题是逗号，你不能把它分成大的小数或双倍值。你可以用点替换。

str = str.replace(",",".");

在您可以使用的最简单的解决方案中：

String str = "1000048,35";
System.out.println(NumberFormat.getNumberInstance(new Locale("sk","SK")).parse(str));

最终解决方案：

    try {
        String str = "1000048,35";
        NumberFormat numberFormat = NumberFormat.getNumberInstance(new Locale("sk", "SK"));
        Number number = numberFormat.parse(str);
        System.out.println(numberFormat.format(number));
    } catch (ParseException e) {
        e.printStackTrace();
    }