input masking

[sah]

suppose a text field takes phone number as input. i want to make the text field take only digits and if any letter is pressed then no character is echoed in the text field. how can i do this?

[dlorde]

See JFormattedTextField (http://java.sun.com/javase/6/docs/api/javax/swing/JFormattedTextField.html) and How to Use Formatted Text Fields (http://java.sun.com/docs/books/tutorial/uiswing/components/formattedtextfield.html).

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