Java EE (Java Enterprise Edition) General Discussion

Hello,

I am trying to display a certain decimal as a currency, the code looks like:

NumberFormat currency =
                NumberFormat.getCurrencyInstance( Locale.FRANCE );
        return currency.format( price );

however, when this is displayed in the browser (through EL), the currency symbol is displayed as a question mark.
I read some other posts on this problem and they recommended I check that the font that I am using is able to display currency symbols.
I am not sure what they mean. The font-family that I am using is specified in my CSS file and it is arial, sans-serif.
I tried to look for something online that states whether this font can display currency symbols but couldn't find anything.
Would changing the font help?
What should I change it to?

Thank you
_