Formatted Text Field Formats

Question

I have a FormattedTextField where the user inputs a decimal value. It works just fine, until the user deselects the field. At this point, if the value is <1 with three leading zeros (i.e. 0.0001), the field displays 0. The correct value is obtained from the text field, and it displays just fine when it's being edited, but the output is inaccurate.
// I print via String valueOf to make sure the issue isn't at a String function, and it turns out okay
console.printConsole(String.valueOf(a3));
// I specify a formatter factory with my own object (defined below)
// Since I use the same formatter object for the display, input, edit params, I would
// think the way it is outputted wouldn't change across these, but it does
label3 = new JLabel("i power " + 3 + " coefficient");
field3 = new JFormattedTextField(new DefaultFormatterFactory(
new CalFormatter(),
new CalFormatter(),
new CalFormatter()));
// And I make sure there are enough columns to display the info
field3.setValue(new Double(a3));
field3.setColumns(10);
// My cal formatter object
class CalFormatter extends NumberFormatter{
public CalFormatter(){
super();
// I manually call the valueOf String function in case that's where the loss of accuracy originates
// ...no luck
public String valueToString(double number) throws ParseException {
return String.valueOf(number);

Answer 1

what happens when you switch the lines to do the following:
from this:
field3.setValue(new Double(a3));
field3.setColumns(10);
to this:
field3.setColumns(10);
field3.setValue(new Double(a3));
setColumns clears the field, so that may be your problem.