Question

How can I format Floats in Java so that the float component is displayed only if it’s not zero? For example:

 123.45 -> 123.45 99.0   -> 99 23.2   -> 23.2 45.0   -> 45 

Edit: I forgot to mention – I’m still on Java 1.4 – sorry!

Answer 1

If you use DecimalFormat and specify # in the pattern it only displays the value if it is not zero.

See my question How do I format a number in java?

Sample Code

 DecimalFormat format = new DecimalFormat('###.##');      double[] doubles = {123.45, 99.0, 23.2, 45.0};     for(int i=0;i<doubles.length;i++){         System.out.println(format.format(doubles[i]));     }