Characters you can use in the formatting mask : JFormattedTextField « Swing « Java Tutorial

#Any valid number (Character.isDigit).
'(single quote)Escape character, used to escape any of the special formatting characters.
UAny character (Character.isLetter). All lowercase letters are mapped to uppercase.
LAny character (Character.isLetter). All uppercase letters are mapped to lowercase.
AAny character or number (Character.isLetter or Character.isDigit).
?Any character (Character.isLetter).
HAny hex character (0-9, a-f or A-F).

14.18.2.Characters you can use in the formatting mask
14.18.3.JFormattedTextField focus lost behaviour
14.18.4.JFormattedTextField with SimpleDateFormatJFormattedTextField with SimpleDateFormat
14.18.5.Using DefaultFormatterFactory to create Date formatUsing DefaultFormatterFactory to create Date format
14.18.6.Formatted Date and Time Input: DateFormat.SHORTFormatted Date and Time Input: DateFormat.SHORT
14.18.7.Formatted Date and Time Input: DateFormat.FULL, Locale.USFormatted Date and Time Input: DateFormat.FULL, Locale.US
14.18.8.Formatted Date and Time Input: DateFormat.MEDIUM, Locale.ITALIANFormatted Date and Time Input: DateFormat.MEDIUM, Locale.ITALIAN
14.18.9.Formatted Date and Time Input: new SimpleDateFormat(E, Locale.FRENCH)Formatted Date and Time Input: new SimpleDateFormat(E, Locale.FRENCH)
14.18.10.Formatted Date and Time Input: DateFormat.getTimeInstance(DateFormat.SHORT)Formatted Date and Time Input: DateFormat.getTimeInstance(DateFormat.SHORT)
14.18.11.Formatted Numeric Input: NumberFormat.getCurrencyInstance(Locale.UK)Formatted Numeric Input: NumberFormat.getCurrencyInstance(Locale.UK)
14.18.12.Formatted Numeric Input: NumberFormat.getInstance()Formatted Numeric Input: NumberFormat.getInstance()
14.18.13.Formatted Numeric Input: NumberFormat.getIntegerInstance(Locale.ITALIAN)Formatted Numeric Input: NumberFormat.getIntegerInstance(Locale.ITALIAN)
14.18.14.Formatted Numeric Input: NumberFormat.getNumberInstance(Locale.FRENCH)Formatted Numeric Input: NumberFormat.getNumberInstance(Locale.FRENCH)
14.18.15.Formatted Numeric Input: Raw NumberFormatted Numeric Input: Raw Number
14.18.16.Adding ActionListener to JFormattedTextFieldAdding ActionListener to JFormattedTextField
14.18.17.It implements a mortgage calculator that uses four JFormattedTextFields
14.18.18.Using Actions with Text Components: JFormattedTextField
14.18.19.Creating a Text Field to Display and Edit a Phone Number
14.18.20.Creating a Text Field to Display and Edit a social security number
14.18.21.A decimal number with one digit following the decimal point;
14.18.22.A BigDecimal object custom formatter
14.18.23.Dynamically change the format
14.18.24.Support a date with the custom format: 2009-1-1
14.18.25.Customizing a JFormattedTextField Look and Feel
14.18.26.Make custom Input Text Formatter for JFormattedTextField