Java 中的美元货币格式
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USD Currency Formatting in Java
提问by Tidbtis
In Java, how can I efficiently convert floats like 1234.56and similar BigDecimals into Strings like $1,234.56
在 Java 中，如何有效地将1234.56类似 BigDecimals 的浮点数转换为类似的字符串$1,234.56
I'm looking for the following:
我正在寻找以下内容：
String 12345.67becomes String $12,345.67
字符串12345.67变成字符串$12,345.67
I'm also looking to do this with Floatand BigDecimalas well.
我也想用Float和来做这件事BigDecimal。
回答by krock
DecimalFormat moneyFormat = new DecimalFormat("import java.text.NumberFormat;
// Get a currency formatter for the current locale.
NumberFormat fmt = NumberFormat.getCurrencyInstance();
System.out.println(fmt.format(120.00));
.00");
System.out.println(moneyFormat.format(1234.56));
回答by Brian Clapper
There's a locale-sensitive idiom that works well:
有一个对语言环境敏感的习语很有效：
import java.text.NumberFormat;
import java.util.Locale;
Locale locale = new Locale("en", "UK");
NumberFormat fmt = NumberFormat.getCurrencyInstance(locale);
System.out.println(fmt.format(120.00));
If your current locale is in the US, the printlnwill print $120.00
如果您当前的语言环境在美国，println则将打印 $120.00
Another example:
另一个例子：
import java.math.BigDecimal;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
public class test {
public static void main(String[] args) {
DecimalFormatSymbols symbols = new DecimalFormatSymbols();
symbols.setGroupingSeparator(',');
String pattern = "$#,##0.###";
DecimalFormat decimalFormat = new DecimalFormat(pattern, symbols);
BigDecimal bigDecimal = new BigDecimal("12345.67");
String bigDecimalConvertedValue = decimalFormat.format(bigDecimal);
String convertedValue = decimalFormat.format(12345.67);
System.out.println(bigDecimalConvertedValue);
System.out.println(convertedValue);
}
}
This will print: ￡120.00
这将打印：￡120.00
回答by ABHISHEK HONEY
Here is the code according to your input and output::
这是根据您的输入和输出的代码：
The output of the program is $12,345.67 for both BigDecimal and number and it works for float also.
BigDecimal 和 number 程序的输出为 12,345.67 美元，它也适用于浮点数。
##代码##