Java 格式 BigDecimal 数字，带逗号和 2 个小数位
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时间：2020-11-02 09:17:10 来源:igfitidea点击:
Java format BigDecimal numbers with comma and 2 decimal place
提问by AmbGup
I want to format BigDecimal Numbers with comma and 2 decimal points. e.g.
我想用逗号和 2 个小数点格式化 BigDecimal 数字。例如
Amount is: 5.0001 and formatted to: 5.00
Amount is: 999999999.999999 and formatted to: 999,999,999.99
Amount is: 1000.4999 and formatted to: 1,000.49
Amount is: 9999.089 and formatted to: 9,999.08
Amount is: 0.19999 and formatted to: 0.19
Amount is: 123456.99999999 and formatted to: 123,456.99
回答by AmbGup
This should be enough to get the results.
这应该足以得到结果。
String.format("%,.2f", amount.setScale(2, RoundingMode.DOWN));
回答by Ciprian
You should use DecimalFormat:
你应该使用DecimalFormat：
val df: DecimalFormat = DecimalFormat("#,##0.000")
df.decimalFormatSymbols = DecimalFormatSymbols(Locale.getDefault())
df.format(BigDecimal(123456,78)); //will output 123.456,78 - depending on Locale
