Is there any way to accept only numeric values in a JTextField?

Question

Is there any way to accept only numeric values in a JTextField? Is there any special method for this?

Answer 1

numberField = new JFormattedTextField(NumberFormat.getInstance());

Formatted text field tutorial

Answer 2

You would like to take a look at JFormattedTextField

Formatted text fields provide a way for developers to specify the valid set of characters that can be typed in a text field

This is a subclass of JTextField, so you can use it like this:

JTextField textField = new JFormattedTextField(NumberFormat.getInstance());

Answer 3

Look at JFormattedTextField.

Answer 4

Although there is the pure evil JFormattedTextField there isn't a trivial way to do it using only the Swing library. The best way to implement this sort of feature is with a DocumentFilter.

Some code I prepared earlier. A bit of description.

Answer 5

I think it is the best solution:

JTextField textField = new JFormattedTextField(new MaskFormatter("###")); //

Answer 6

You can create a beautiful text field in java that accepts or allows only numeric values.. You can even set the precision for the float values... check the code in zybocodes(www.zybonics.com/zybocodes/ http://www.zybonics.com/zybocodes/code/CodeViewForm.php?codeID=3