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DecimalFormat not rounding with HALF_EVEN mode  RSS feed

 
Raj Ohadi
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The ouput is 500. It means it just simply truncates the digits after decimal. How do I use the Decimal pattern like
"###0;-###0" to indicate it has no decimal but maintain an half-even rounding mode ? I read the DecimalFormat API and it says its default rounding mode is half-even. But it seems this rounding is not applied here.

Please help.
 
Winston Gutkowski
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Raj Ohadi wrote:I read the DecimalFormat API and it says its default rounding mode is half-even.

I'm an old printf() fan (String.format() works the same way BTW), and with that you'd use:but I can't help much with DecimalFormat because I'm no expert. I suspect it has far more options; with printf()/String.format() you have to accept its default rounding (whatever that is; probably half-even too).

Winston
 
Campbell Ritchie
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Winston Gutkowski wrote: . . its default rounding (whatever that is; probably half-even too).

Winston
I think it’s half away from zero, but I’m not certain.
 
Campbell Ritchie
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I have checked in the Formatter class; for %e it says[quot]ethe value will be rounded using the round half up algorithm.
 
It is sorta covered in the JavaRanch Style Guide.
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