How to format a double without converting it into string type

Question

I want values like

1,
1.0,
0 

to be formatted to

1.00,
1.00,
0.00

I'm using the following code,

Double stringToNumber=Double.parseDouble("3");
DecimalFormat toTheFormat = new DecimalFormat("0.00");
toTheFormat.format(stringToNumber)

.format returns a string and if I parse using Double.parseDouble() method.

I lose the precision, i,e 3.00 becomes 3.0 again.How to solve this?

Answer 1

Would this work? I have made changes

    public class Tester {
    public static void main (String[] args) {
        double d = 1;
        NumberFormat numFormat = NumberFormat.getInstance();
        numFormat.setMaximumFractionDigits(3);
        numFormat.setMinimumFractionDigits(2);
        System.out.println(numFormat.format(d));
    }
}