KaliMa KaliMa - 4 days ago 4
Java Question

Java formatting decimals to 2 digits precision

Right now I am doing this

DecimalFormat df = new DecimalFormat("#.##");
//usage: df.format(someDouble);


But I don't know if this is the correct way to "round off" the display of a double to 2 decimal points. Will this work even if the number of digits to the left of the decimal point > 1?

Answer

You should use:

DecimalFormat df = new DecimalFormat("#.00");

DecimalFormat df = new DecimalFormat("#.##"); means, that those decimal places are optional. You can see the difference when applying on 1.2 or 1.0.

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--Documentation

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