How do I use JFormattedTextField to format user input?

The JFormattedTextField allows us to create a text field that can accept a formatted input. In this example we create two formatted text fields that accept a valid phone number and date.

Here are some other characters that can be used in the MaskFormatter class.

# For number
? For letter
A For number or letter
* For anything
L For letter, it will be converted to the equivalent lower case
U For letter, it will be converted to the equivalent upper case
H For hexa decimal value
To escape another mask character