Formatting Double Value in Java

Question

I am dealing with lot of double values in my application, is there is any easy way to handle the formatting of decimal values in Java?

Is there any other better way of doing it than

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

What i want to do basically is format double values like

23.59004  to 23.59

35.7  to 35.70

3.0 to 3.00

9 to 9.00

Answer 1

An alternative is to use String.format:

double[] arr = { 23.59004,
    35.7,
    3.0,
    9
};

for ( double dub : arr ) {
  System.out.println( String.format( "%.2f", dub ) );
}

output:

23.59
35.70
3.00
9.00

You could also use System.out.format (same method signature), or create a java.util.Formatterwhich works in the same way.