Customize a JTextField to accept only the characters you specify

This JTextField allows for special filtering of what text can be entered.

• It is specifically used for preventing the user from entering invalid characters.
• Spaces may be allowed or disallowed.
• Valid characters may be specified, alphanumeric is the default.
• By default, spaces, symbols, etc are not allowed.
• By default, periods are allowed.

This class was based upon Real Gagnon's work, found at http://codeguru.earthweb.com/java/

JTextFieldFilter.java  Submitted by Michael Pell
 

A subclass of PlainDocument which is used to restrict user input to whole numbers.

WholeNumberField.java

Customize your JTextField to enforce a DOS 8.3 file name format  You can also put this into a JTable

 This JTextField allows for special filtering of what text can be entered.  It is specifically used for allowing the user to enter a file name using the  DOS 8.3 format.  Spaces may be allowed or disallowed.  Valid characters may be specified, alphanumeric is the default. A max file name length and max extension length may be specified.  By default only allows 1 "." in the file name.

This class was based upon Real Gagnon's work, found at http://codeguru.earthweb.com/java/

JTextFieldFileName.java  Submitted by Michael Pell

JTextFieldFileNameFilter.java  Submitted by Michael Pell