Can't format my numbers to 3 decimal points (.000)

Question

public class SimpleTrig {
    public static void main(String[] args) {

        DecimalFormat dx;
        dx = new DecimalFormat("0.000");

        String angleStr;
        double angle, angleCosine;

        angleStr = JOptionPane.showInputDialog(null,"Enter an angle (in degrees)");
        angle = Double.parseDouble(angleStr);
        angleCosine = Math.cos(Math.toRadians(angle));

        JOptionPane.showMessageDialog(null, "The cosine of " + angle 
                                      + " degrees is " + dx.format(angleCosine));
    }
}

The output of angleCosine is giving me an output of 0.000 as my final answer regardless of any angle I input.

Answer 1

Use new DecimalFormat("#.###")

Answer 2

Change

 dx = new DecimalFormat("0.000");

into

 dx = new DecimalFormat("#0.000");

Or

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

Answer 3

You can use something like

DecimalFormat df2 = new DecimalFormat( "#0.00" );

Answer 4

try to change the format to

DecimalFormat dx = new DecimalFormat("#.000");

Answer 5

Seems to work fine when I run it, enter 45, get 0.707. using java 1.6.0_30

Had to add final closing bracket and package definition to get it to run.

Answer 6

Try Using

  DecimalFormat dx = new DecimalFormat("##,##0.000");

or Check angleCosine value is proper.