Controlling what a JFormattedTextField returns

Asked May 30 '13 at 15:20

Active May 31 '13 at 07:19

Viewed 365 times

I intialize my JFormattedTextField like this :

JFormattedTextField field = new JFormattedTextField();
field.setFormatterFactory(new javax.swing.text.DefaultFormatterFactory(new javax.swing.text.NumberFormatter(new java.text.DecimalFormat("#0.00"))));

Now, when I enter any number with decimal points, the field returns a Double. When I enter a number without decimal points, it returns a Long. Is there a way to setup the Formatter so it returns a Double even when the number entered has no decimal points ?

edited May 31 '13 at 07:19

mKorbel

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asked May 30 '13 at 15:20

Jannis Alexakis

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Set your own `Format` on the `JFormattedTextField`. See [here](http://stackoverflow.com/a/13424140/1076463) for an example – Robin May 30 '13 at 15:27
Or use `doubleValue()` maybe? – Jimmy T. May 30 '13 at 15:28
@Jimmy T. doubleValue() would work ofcourse, but I find it a bit unwieldly checking every returned value whether it´s a Long or already a Double. – Jannis Alexakis May 30 '13 at 15:34
@Robin the example is just what I needed. Thanks. – Jannis Alexakis May 30 '13 at 15:34
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Every `Number` has a method `doubleValue()`. No need to check the type. – Jimmy T. May 30 '13 at 15:58
Yes, you´re right. Now I am casting getValue() to Long or Double as needed, but I could cast to Number and call doubleValue() or longValue() depending on my needs. – Jannis Alexakis May 30 '13 at 16:44

Controlling what a JFormattedTextField returns

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