Decimals in Java

How do you assign a certain number of decimal points in a java program?

When I print out a message using System.out.println, the system prints out numbers with about 10 decimal places.

Thanks,
Nick!

import java.text.NumberFormat;
..................
NumberFormat nf = NumberFormat.getNumberInstance() ;
nf.setGroupingUsed(false) ; // don't group by threes
nf.setMaximumFractionDigits(2) ;
nf.setMinimumFractionDigits(2) ;
System.out.println("float unformatted " + d1 + " now formatted " + nf.format(d1));




Jason

it also depends on what type your variables are. Floats, doubles, ints...

Otherwise the numberformat class is the way to go.

My variables are declared as doubles.

Could someone please give me an example of how to implement the above code?


Thanks,
Nick!

That code is all you need:
import java.text.NumberFormat;
public class decimals

{
public static void main(String[] args)

{
NumberFormat nf = NumberFormat.getNumberInstance() ;
nf.setGroupingUsed(false) ; // don't group by threes
nf.setMaximumFractionDigits(2) ;
nf.setMinimumFractionDigits(2) ;
double d1 = 3.427223;
System.out.println("float unformatted " + d1 + " now formatted " + nf.format(d1));

}

}

Ah, okay! I've got it.

Thank You!!

:D